Update 03-rds.yaml

I get this error when I try to run the template: The Parameter Group default.aurora-postgresql11 with DBParameterGroupFamily aurora-postgresql11 cannot be used for this instance. Please use a Parameter Group with DBParameterGroupFamily aurora-postgresql12 (Service: AmazonRDS; Status Code: 400; Error Code: InvalidParameterCombination; Request ID: d4985bb8-ed41-4b47-99ca-47000cd846f6; Proxy: null)
It working once ytou change the DBClusterParameterGroupName to default.aurora-postgresql12

templates/03-rds.yaml

@@ -151,7 +151,7 @@ Resources:
       DatabaseName: !Ref DatabaseName
       DBSubnetGroupName: !Ref DataSubnetGroup
       Engine: aurora-postgresql
-      DBClusterParameterGroupName: default.aurora-postgresql11
+      DBClusterParameterGroupName: default.aurora-postgresql12
       KmsKeyId:
         !If [ UseAWS-ManagedCMK, !Ref 'AWS::NoValue', !Ref DatabaseCmk ]
       MasterUsername: !Join ['', ['{{resolve:secretsmanager:', !Ref MyRDSInstanceSecretArn, ':SecretString:username}}' ]]