Update release notes.

Author: adityatoshniwal

docs/en_US/release_notes_9_10.rst

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+***********
+Version 9.9
+***********
+
+Release date: 2025-11-13
+
+This release contains a number of bug fixes and new features since the release of pgAdmin 4 v9.9.
+
+Supported Database Servers
+**************************
+**PostgreSQL**: 13, 14, 15, 16, 17 and 18
+
+**EDB Advanced Server**: 13, 14, 15, 16 and 17
+
+Bundled PostgreSQL Utilities
+****************************
+**psql**, **pg_dump**, **pg_dumpall**, **pg_restore**: 17.5
+
+
+New features
+************
+
+Housekeeping
+************
+  | `Issue #8676 <https://github.com/pgadmin-org/pgadmin4/issues/8676>`_ -  Migrate pgAdmin UI to use React 19.
+
+
+Bug fixes
+*********