Update mailroom to v0.0.9

This release adds support for an HTTP `/liveness` health and refactors
some code in preparation for supporting other e-mail inputs.

Gemfile

@@ -439,7 +439,7 @@ end
 gem 'octokit', '~> 4.15'
 
 # https://gitlab.com/gitlab-org/gitlab/issues/207207
-gem 'gitlab-mail_room', '~> 0.0.8', require: 'mail_room'
+gem 'gitlab-mail_room', '~> 0.0.9', require: 'mail_room'
 
 gem 'email_reply_trimmer', '~> 0.1'
 gem 'html2text'

Gemfile.lock

@@ -464,7 +464,7 @@ GEM
       pg_query (~> 1.3)
       redis (> 3.0.0, < 5.0.0)
     gitlab-license (1.3.1)
-    gitlab-mail_room (0.0.8)
+    gitlab-mail_room (0.0.9)
     gitlab-markup (1.7.1)
     gitlab-net-dns (0.9.1)
     gitlab-pry-byebug (3.9.0)
@@ -1427,7 +1427,7 @@ DEPENDENCIES
   gitlab-fog-google (~> 1.13)
   gitlab-labkit (~> 0.16.1)
   gitlab-license (~> 1.3)
-  gitlab-mail_room (~> 0.0.8)
+  gitlab-mail_room (~> 0.0.9)
   gitlab-markup (~> 1.7.1)
   gitlab-net-dns (~> 0.9.1)
   gitlab-pry-byebug

changelogs/unreleased/sh-update-mailroom-0-0-9.yml

+---
+title: Update mailroom to v0.0.9
+merge_request: 56592
+author:
+type: changed