Update CHANGELOG

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CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.3.0 (unreleased)
-  - Fix Error 500 when viewing user's personal projects from admin page (Stan Hu)
-  - Ensure cached application settings are refreshed at startup (Stan Hu)
-  - Fix 404 in redirection after removing a project (Stan Hu)
   - Fix: Assignee selector is empty when 'Unassigned' is selected (Jose Corcuera)
   - Fix 500 error when update group member permission
-  - Fix: Raw private snippets access workflow
   - Trim leading and trailing whitespace of milestone and issueable titles (Jose Corcuera)
 
+v 8.2.2
+  - Fix 404 in redirection after removing a project (Stan Hu)
+  - Ensure cached application settings are refreshed at startup (Stan Hu)
+  - Fix Error 500 when viewing user's personal projects from admin page (Stan Hu)
+  - Fix: Raw private snippets access workflow
+  - Prevent "413 Request entity too large" errors when pushing large files with LFS
+
 v 8.2.1
   - Forcefully update builds that didn't want to update with state machine
   - Fix: saving GitLabCiService as Admin Template