fix: revert serverpod upgrade

Author: dabblingwithcode

school_data_hub_server/pubspec.yaml

@@ -11,7 +11,7 @@ dependencies:
   http: ^1.6.0
   logging: ^1.3.0
   path: ^1.9.1
-  serverpod: 3.2.3
+  serverpod: 2.9.2
   serverpod_auth_server: 2.9.2
   uml_for_serverpod: 0.0.5
   mailer: ^6.6.0