Update Changelog

Author: pulpbot

CHANGES.md

@@ -8,6 +8,15 @@
 
 [//]: # (towncrier release notes start)
 
+## 3.19.1 (2025-09-14) {: #3.19.1 }
+
+#### Bugfixes {: #3.19.1-bugfix }
+
+- Fixed publication error when package's dists contain differing versions of its name.
+  [#907](https://github.com/pulp/pulp_python/issues/907)
+
+---
+
 ## 3.19.0 (2025-08-26) {: #3.19.0 }
 
 #### Features {: #3.19.0-feature }