Update prismjs from 1.6.0 to 1.21.0

To address CVE-2020-15138
Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

changelogs/unreleased/237876-update-prismjs-to-1-21-0.yml

+---
+title: Update prismjs from 1.6.0 to 1.21.0
+merge_request: 39593
+author: Takuya Noguchi
+type: other

package.json

@@ -119,7 +119,7 @@
     "pdfjs-dist": "^2.0.943",
     "pikaday": "^1.8.0",
     "popper.js": "^1.16.1",
-    "prismjs": "^1.6.0",
+    "prismjs": "^1.21.0",
     "prosemirror-markdown": "^1.3.0",
     "prosemirror-model": "^1.6.4",
     "raphael": "^2.2.7",

yarn.lock

@@ -2858,7 +2858,7 @@ cli-width@^2.0.0:
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
   integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
 
-clipboard@^1.5.5, clipboard@^1.7.1:
+clipboard@^1.7.1:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-1.7.1.tgz#360d6d6946e99a7a1fef395e42ba92b5e9b5a16b"
   integrity sha1-Ng1taUbpmnof7zleQrqStem1oWs=
@@ -2867,6 +2867,15 @@ clipboard@^1.5.5, clipboard@^1.7.1:
     select "^1.1.2"
     tiny-emitter "^2.0.0"
 
+clipboard@^2.0.0:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-2.0.6.tgz#52921296eec0fdf77ead1749421b21c968647376"
+  integrity sha512-g5zbiixBRk/wyKakSwCKd7vQXDjFnAMGHoEyBogG/bw9kTD9GvdAvaoRR1ALcEzt3pVKxZR0pViekPMIS0QyGg==
+  dependencies:
+    good-listener "^1.2.2"
+    select "^1.1.2"
+    tiny-emitter "^2.0.0"
+
 cliui@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
@@ -9571,12 +9580,12 @@ pretty@^2.0.0:
     extend-shallow "^2.0.1"
     js-beautify "^1.6.12"
 
-prismjs@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.6.0.tgz#118d95fb7a66dba2272e343b345f5236659db365"
-  integrity sha1-EY2V+3pm26InLjQ7NF9SNmWds2U=
+prismjs@^1.21.0:
+  version "1.21.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.21.0.tgz#36c086ec36b45319ec4218ee164c110f9fc015a3"
+  integrity sha512-uGdSIu1nk3kej2iZsLyDoJ7e9bnPzIgY0naW/HdknGj61zScaprVEVGHrPoXqI+M9sP0NDnTK2jpkvmldpuqDw==
   optionalDependencies:
-    clipboard "^1.5.5"
+    clipboard "^2.0.0"
 
 private@^0.1.8:
   version "0.1.8"