chore(deps): update dependency cloud-sql-python-connector to v1.16.0 (#12858)

Author: renovate-bot

cloud-sql/mysql/sqlalchemy/requirements.txt

@@ -2,6 +2,6 @@ Flask==2.2.2
 SQLAlchemy==2.0.36
 PyMySQL==1.1.1
 gunicorn==22.0.0
-cloud-sql-python-connector==1.2.4
+cloud-sql-python-connector==1.16.0
 functions-framework==3.5.0
 Werkzeug==2.3.7

cloud-sql/postgres/sqlalchemy/requirements.txt

@@ -1,7 +1,7 @@
 Flask==2.2.2
 pg8000==1.31.2
 SQLAlchemy==2.0.36
-cloud-sql-python-connector==1.9.1
+cloud-sql-python-connector==1.16.0
 gunicorn==22.0.0
 functions-framework==3.5.0
 Werkzeug==2.3.7

cloud-sql/sql-server/sqlalchemy/requirements.txt

@@ -3,7 +3,7 @@ gunicorn==22.0.0
 python-tds==1.15.0
 pyopenssl==24.0.0
 SQLAlchemy==2.0.36
-cloud-sql-python-connector==1.9.1
+cloud-sql-python-connector==1.16.0
 sqlalchemy-pytds==1.0.2
 functions-framework==3.5.0
 Werkzeug==2.3.7