Added CHANGELOG item

CHANGELOG

@@ -54,6 +54,7 @@ v 8.11.0 (unreleased)
   - Upgrade Grape from 0.13.0 to 0.15.0. !4601
   - Trigram indexes for the "ci_runners" table have been removed to speed up UPDATE queries
   - Fix devise deprecation warnings.
+  - Check for 2FA when using Git over HTTP and only allow PersonalAccessTokens as password in that case !5764
   - Update version_sorter and use new interface for faster tag sorting
   - Optimize checking if a user has read access to a list of issues !5370
   - Store all DB secrets in secrets.yml, under descriptive names !5274