Backport deprecation cli

data/deprecations/14-3-deprecation-release-cli.yml

+- name: "Release CLI be distributed as a generic package" # The name of the feature to be deprecated
+  announcement_milestone: "14.2" # The milestone when this feature was first announced as deprecated.
+  announcement_date: "2021-08-22" # The date of the milestone release when this feature was first announced as deprecated
+  removal_milestone: "14.6" # The milestone when this feature is planned to be removed
+  body: | # Do not modify this line, instead modify the lines below.
+    The [release-cli](https://gitlab.com/gitlab-org/release-cli) will be released as a [generic package](https://gitlab.com/gitlab-org/release-cli/-/packages) starting in GitLab 14.2. We will continue to deploy it as a binary to S3 until GitLab 14.5 and stop distributing it in S3 in GitLab 14.6.
+  stage: # (optional - may be required in the future) String value of the stage that the feature was created in. e.g., Growth
+  tiers: # (optional - may be required in the future) An array of tiers that the feature is available in currently.  e.g., [Free, Silver, Gold, Core, Premium, Ultimate]
+  issue_url: # (optional) This is a link to the deprecation issue in GitLab
+  documentation_url: # (optional) This is a link to the current documentation page
+  image_url: # (optional) This is a link to a thumbnail image depicting the feature
+  video_url: # (optional) Use the youtube thumbnail URL with the structure of https://img.youtube.com/vi/UNIQUEID/hqdefault.jpg
+  removal_date: "2021-12-22" # (optional - may be required in the future) YYYY-MM-DD format - the date of the milestone release when this feature is planned to be removed