Update CHANGELOG for 8.65.0

[ci skip]

CHANGELOG

 # Changelog for gitlab-workhorse
 
+## v8.65.0
+
+### Fixed
+- Fix long polling to default to 50 s instead of 50 ns
+  https://gitlab.com/gitlab-org/gitlab-workhorse/-/merge_requests/687
+
+### Security
+- Use URL.EscapePath() in upstream router
+  https://gitlab.com/gitlab-org/gitlab-workhorse/-/merge_requests/
+
 ## v8.64.0
 
 ### Other

changelogs/unreleased/jv-router-escape-path.yml

----
-title: Use URL.EscapePath() in upstream router
-merge_request:
-author:
-type: security

changelogs/unreleased/sh-fix-long-polling-50s.yml

----
-title: Fix long polling to default to 50 s instead of 50 ns
-merge_request: 687
-author:
-type: fixed