Update CHANGELOG.md for 13.9.3-ee

[ci skip]

CHANGELOG.md

@@ -2,6 +2,16 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
+## 13.9.3 (2021-03-08)
+
+### Fixed (4 changes)
+
+- Upgrade gitlab-shell to v13.17.0. !55295
+- Update Kroki to fix Wavedrom graphs. !55659
+- Fix disabling of Kroki optional formats. !55665
+- Rename asset_proxy_allowlist column. !55884
+
+
 ## 13.9.2 (2021-03-04)
 ### Security (6 changes)

changelogs/unreleased/322861-outdated-asciidoctor-kroki-gem-with-spelling-mistake-for-wavedrom.yml

----
-title: Update Kroki to fix Wavedrom graphs
-merge_request: 55659
-author:
-type: fixed

changelogs/unreleased/322991-asset_proxy_allowlist-errors-in-13-9-for-geo-with-downtime-upgrade.yml

----
-title: Rename asset_proxy_allowlist column
-merge_request: 55884
-author:
-type: fixed

changelogs/unreleased/sh-bump-gitlab-shell-version.yml

----
-title: Upgrade gitlab-shell to v13.17.0
-merge_request: 55295
-author:
-type: fixed

changelogs/unreleased/sh-fix-kroki-format-filtering.yml

----
-title: Fix disabling of Kroki optional formats
-merge_request: 55665
-author:
-type: fixed