Move browserslistrc to a separate file

In order to re-use our browserslist config across babel, autoprefixer
and other tools, we are moving it to a separate file.

Furthermore we update browserslist itself, because why not.

.browserslistrc

+#
+# This list of browsers is a conservative first definition, based on
+# https://docs.gitlab.com/ee/install/requirements.html#supported-web-browsers
+# with the following reasoning:
+#
+# - Edge: Pick the last two major version before the Chrome switch
+# - Rest: We should support the latest ESR of Firefox: 68, because it used quite a lot.
+#         For the rest, pick browser versions that have a similar age to Firefox 68.
+#
+# See also this follow-up epic:
+# https://gitlab.com/groups/gitlab-org/-/epics/3957
+#
+chrome >= 73
+edge >= 17
+firefox >= 68
+safari >= 12

Gemfile

@@ -284,6 +284,7 @@ gem 'gitlab_chronic_duration', '~> 0.10.6.2'
 gem 'rack-proxy', '~> 0.6.0'
 
 gem 'sassc-rails', '~> 2.1.0'
+gem 'autoprefixer-rails', '10.2.0.0'
 gem 'terser', '1.0.2'
 
 gem 'addressable', '~> 2.7'

Gemfile.lock

@@ -94,6 +94,8 @@ GEM
     attr_encrypted (3.1.0)
       encryptor (~> 3.0.0)
     attr_required (1.0.1)
+    autoprefixer-rails (10.2.0.0)
+      execjs
     awesome_print (1.8.0)
     awrence (1.1.1)
     aws-eventstream (1.1.0)
@@ -1285,6 +1287,7 @@ DEPENDENCIES
   asciidoctor-plantuml (~> 0.0.12)
   atlassian-jwt (~> 0.2.0)
   attr_encrypted (~> 3.1.0)
+  autoprefixer-rails (= 10.2.0.0)
   awesome_print
   aws-sdk-cloudformation (~> 1)
   aws-sdk-core (~> 3)

babel.config.js

@@ -9,24 +9,6 @@ let presets = [
       useBuiltIns: 'usage',
       corejs: { version: 3, proposals: true },
       modules: false,
-      /**
-       * This list of browsers is a conservative first definition, based on
-       * https://docs.gitlab.com/ee/install/requirements.html#supported-web-browsers
-       * with the following reasoning:
-       *
-       * - Edge: Pick the last two major version before the Chrome switch
-       * - Rest: We should support the latest ESR of Firefox: 68, because it used quite a lot.
-       *         For the rest, pick browser versions that have a similar age to Firefox 68.
-       *
-       * See also this follow-up epic:
-       * https://gitlab.com/groups/gitlab-org/-/epics/3957
-       */
-      targets: {
-        chrome: '73',
-        edge: '17',
-        firefox: '68',
-        safari: '12',
-      },
     },
   ],
 ];

yarn.lock

@@ -2486,14 +2486,15 @@ browserify-zlib@^0.2.0:
     pako "~1.0.5"
 
 browserslist@^4.12.0, browserslist@^4.6.3, browserslist@^4.8.3:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.12.0.tgz#06c6d5715a1ede6c51fc39ff67fd647f740b656d"
-  integrity sha512-UH2GkcEDSI0k/lRkuDSzFl9ZZ87skSy9w2XAn1MsZnL+4c4rqbBd3e82UWHbYDpztABrPBhZsTEeuxVfHppqDg==
+  version "4.16.1"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.16.1.tgz#bf757a2da376b3447b800a16f0f1c96358138766"
+  integrity sha512-UXhDrwqsNcpTYJBTZsbGATDxZbiVDsx6UjpmRUmtnP10pr8wAYr5LgFoEFw9ixriQH2mv/NX2SfGzE/o8GndLA==
   dependencies:
-    caniuse-lite "^1.0.30001043"
-    electron-to-chromium "^1.3.413"
-    node-releases "^1.1.53"
-    pkg-up "^2.0.0"
+    caniuse-lite "^1.0.30001173"
+    colorette "^1.2.1"
+    electron-to-chromium "^1.3.634"
+    escalade "^3.1.1"
+    node-releases "^1.1.69"
 
 bs-logger@0.x:
   version "0.2.6"
@@ -2717,10 +2718,10 @@ camelcase@^6.0.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-6.0.0.tgz#5259f7c30e35e278f1bdc2a4d91230b37cad981e"
   integrity sha512-8KMDF1Vz2gzOq54ONPJS65IvTUaB1cHJ2DMM7MbPmLZljDH1qpzzLsWdiN9pHh6qvkRVDTi/07+eNGch/oLU4w==
 
-caniuse-lite@^1.0.30000980, caniuse-lite@^1.0.30001043:
-  version "1.0.30001081"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001081.tgz#40615a3c416a047c5a4d45673e5257bf128eb3b5"
-  integrity sha512-iZdh3lu09jsUtLE6Bp8NAbJskco4Y3UDtkR3GTCJGsbMowBU5IWDFF79sV2ws7lSqTzWyKazxam2thasHymENQ==
+caniuse-lite@^1.0.30000980, caniuse-lite@^1.0.30001173:
+  version "1.0.30001178"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001178.tgz#3ad813b2b2c7d585b0be0a2440e1e233c6eabdbc"
+  integrity sha512-VtdZLC0vsXykKni8Uztx45xynytOi71Ufx9T8kHptSw9AL4dpqailUJJHavttuzUe1KYuBYtChiWv+BAb7mPmQ==
 
 capture-exit@^2.0.0:
   version "2.0.0"
@@ -3050,6 +3051,11 @@ color-name@~1.1.4:
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
   integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
 
+colorette@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.1.tgz#4d0b921325c14faf92633086a536db6e89564b1b"
+  integrity sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw==
+
 colors@^1.1.0:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.3.3.tgz#39e005d546afe01e01f9c4ca8fa50f686a01205d"
@@ -4283,10 +4289,10 @@ ejs@^2.6.1:
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.6.1.tgz#498ec0d495655abc6f23cd61868d926464071aa0"
   integrity sha512-0xy4A/twfrRCnkhfk8ErDi5DqdAsAqeGxht4xkCUrsvhhbQNs7E+4jV0CN7+NKIY0aHE72+XvqtBIXzD31ZbXQ==
 
-electron-to-chromium@^1.3.413:
-  version "1.3.466"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.466.tgz#89f716db3afc4bb482ea2aaaa16c4808f89f762a"
-  integrity sha512-eieqkoM2hCkZZRhETKyCouMziDV3l4XEKHRLuzcHG+HV+P7PeODU/z9HAmBgMQkzvHg2DoyQhfIDmmeguLZT/Q==
+electron-to-chromium@^1.3.634:
+  version "1.3.642"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.642.tgz#8b884f50296c2ae2a9997f024d0e3e57facc2b94"
+  integrity sha512-cev+jOrz/Zm1i+Yh334Hed6lQVOkkemk2wRozfMF4MtTR7pxf3r3L5Rbd7uX1zMcEqVJ7alJBnJL7+JffkC6FQ==
 
 elliptic@^6.0.0:
   version "6.4.0"
@@ -4480,6 +4486,11 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
+escalade@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
+  integrity sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==
+
 escape-goat@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/escape-goat/-/escape-goat-2.1.1.tgz#1b2dc77003676c457ec760b2dc68edb648188675"
@@ -8636,10 +8647,10 @@ node-notifier@^8.0.0:
     uuid "^8.3.0"
     which "^2.0.2"
 
-node-releases@^1.1.53:
-  version "1.1.58"
-  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.58.tgz#8ee20eef30fa60e52755fcc0942def5a734fe935"
-  integrity sha512-NxBudgVKiRh/2aPWMgPR7bPTX0VPmGx5QBwCtdHitnqFE5/O8DeBXuIMH1nwNnw/aMo6AjOrpsHzfY3UbUJ7yg==
+node-releases@^1.1.69:
+  version "1.1.70"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.70.tgz#66e0ed0273aa65666d7fe78febe7634875426a08"
+  integrity sha512-Slf2s69+2/uAD79pVVQo8uSiC34+g8GWY8UH2Qtqv34ZfhYrxpYpfzs9Js9d6O0mbDmALuxaTlplnBTnSELcrw==
 
 node-sass@^4.14.1:
   version "4.14.1"
@@ -9362,13 +9373,6 @@ pkg-dir@^4.1.0, pkg-dir@^4.2.0:
   dependencies:
     find-up "^4.0.0"
 
-pkg-up@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-2.0.0.tgz#c819ac728059a461cab1c3889a2be3c49a004d7f"
-  integrity sha1-yBmscoBZpGHKscOImivjxJoATX8=
-  dependencies:
-    find-up "^2.1.0"
-
 pngjs@^3.0.0:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-3.3.3.tgz#85173703bde3edac8998757b96e5821d0966a21b"