Update CHANGELOG.md for 13.8.3-ee

[ci skip]

CHANGELOG.md

@@ -2,6 +2,14 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
+## 13.8.3 (2021-02-05)
+
+### Fixed (2 changes)
+
+- Revert multipart URL optimization for AWS S3. !52561
+- Fix regression with old wiki image uploads. !52656
+
+
 ## 13.8.2 (2021-02-01)
 ### Security (5 changes)

changelogs/unreleased/fj-fix-regression-old-uploads.yml

----
-title: Fix regression with old wiki image uploads
-merge_request: 52656
-author:
-type: fixed

changelogs/unreleased/sh-revert-multipart-upload-optimization.yml

----
-title: Revert multipart URL optimization for AWS S3
-merge_request: 52561
-author:
-type: fixed