Update CHANGELOG for 8.62.0

[ci skip]

CHANGELOG

 # Changelog for gitlab-workhorse
 
+## v8.62.0
+
+### Added
+- Add RubyGems registry upload route
+  https://gitlab.com/gitlab-org/gitlab-workhorse/-/merge_requests/680
+
+### Fixed
+- Cleanup Connection headers
+  https://gitlab.com/gitlab-org/gitlab-workhorse/-/merge_requests/678
+
 ## v8.61.0
 
 ### Fixed

changelogs/unreleased/345-rubygems-route.yml

----
-title: Add RubyGems registry upload route
-merge_request: 680
-author:
-type: added

changelogs/unreleased/ash2k-cleanup-auth-req-headers.yml

----
-title: Cleanup Connection headers
-merge_request: 678
-author:
-type: fixed