Update dependency mysqlclient to v2.2.0

requirements.txt

@@ -14,5 +14,5 @@ django-csp==3.7
 django-compressor==4.3.1
 django-libsass==0.9
 django-betterforms==2.0.0
-mysqlclient==2.1.1  # for production deployment
+mysqlclient==2.2.0  # for production deployment
 tzdata==2023.3