Update release note.

docs/en_US/release_notes.rst

@@ -12,6 +12,7 @@ notes for it.
    :maxdepth: 1
 
 
+   release_notes_8_9
    release_notes_8_8
    release_notes_8_7
    release_notes_8_6

docs/en_US/release_notes_8_9.rst

@@ -0,0 +1,32 @@
+***********
+Version 8.9
+***********
+
+Release date: 2024-06-27
+
+This release contains a number of bug fixes and new features since the release of pgAdmin 4 v8.7.
+
+Supported Database Servers
+**************************
+**PostgreSQL**: 12, 13, 14, 15, and 16
+
+**EDB Advanced Server**: 12, 13, 14, 15, and 16
+
+Bundled PostgreSQL Utilities
+****************************
+**psql**, **pg_dump**, **pg_dumpall**, **pg_restore**: 16.3
+
+
+New features
+************
+
+
+Housekeeping
+************
+
+  | `Issue #7363 <https://github.com/pgadmin-org/pgadmin4/issues/7363>`_ -  Remove the usage of MUI makeStyles as it doesn't support React 18.
+
+Bug fixes
+*********
+
+  | `Issue #6357 <https://github.com/pgadmin-org/pgadmin4/issues/6357>`_ -  Disable the query tool editor input if any SQL is being loaded to prevent users from typing.

requirements.txt

@@ -14,7 +14,7 @@ Flask-Mail==0.*
 Flask-Migrate==4.*
 greenlet==1.1.2;  python_version <= '3.10'
 Flask-SQLAlchemy==3.1.*
-Flask-WTF==1.2.*;
+Flask-WTF==1.2.*
 Flask-Compress==1.*
 Flask-Paranoid==0.*
 Flask-Babel==4.0.*