Update changelog for 16.9.3

GitLab Release Tools Bot · GitLab Release Tools Bot · commit f349c2754b83 · 2024-03-27T08:34:05.000Z
[ci skip]
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -63,6 +63,12 @@ omnibus-gitlab repository.
 
 - [Update Patroni to 3.0.1](gitlab-org/omnibus-gitlab@faba9e7605768373c4747fa7062ab36c7be74205) ([merge request](gitlab-org/omnibus-gitlab!6898))
 
+## 16.9.3 (2024-03-27)
+
+### Security (1 change)
+
+- [Use February 2024 PostgreSQL patches](gitlab-org/security/omnibus-gitlab@b393525dd209f7bda0fbf28e6a700db1931c1388) ([merge request](gitlab-org/security/omnibus-gitlab!422))
+
 ## 16.9.2 (2024-03-06)
 
 ### Security (1 change)
