Merge branch 'docs-aa-changelog-metric-removal' into 'master'

Docs for changelog entries for metric removals

See merge request gitlab-org/gitlab!59854

doc/development/changelog.md

@@ -54,7 +54,7 @@ the `author` field. GitLab team members **should not**.
 - Any docs-only changes **should not** have a changelog entry.
 - Any change behind a feature flag **disabled** by default **should not** have a changelog entry.
 - Any change behind a feature flag that is **enabled** by default **should** have a changelog entry.
-- Any change that adds new Usage Data metrics and changes that needs to be documented in Product Intelligence [Metrics Dictionary](usage_ping/dictionary.md) **should** have a changelog entry.
+- Any change that adds new Usage Data metrics, sets the status of existing ones to `removed`, and changes that need to be documented in Product Intelligence [Metrics Dictionary](usage_ping/dictionary.md) **should** have a changelog entry.
 - A change that adds snowplow events **should** have a changelog entry -
 - A change that [removes a feature flag, or removes a feature and its feature flag](feature_flags/index.md) **must** have a changelog entry.
 - A fix for a regression introduced and then fixed in the same release (i.e.,