feat(infra): FTRS-20321 Corrected cloudwatch agent config on performance EC2

Author: jope1

.github/workflows/pipeline-performance-test-stop.yaml

@@ -15,6 +15,8 @@ on:
         options:
           - dev
           - test
+          - int
+          - ref
       stop-ec2-instance:
         description: "Whether to stop the EC2 instance running the performance test"
         required: false

tests/performance/amazon-cloudwatch-agent.json

@@ -7,7 +7,7 @@
             "file_path": "/home/ssm-user/performance_run.log",
             "log_group_class": "STANDARD",
             "log_stream_name": "LOG_STREAM_NAME",
-            "log_group_name": "/aws/ec2/ftrs-dos-ENVIRONMENT-account_wide-performance-ec2-logs"
+            "log_group_name": "/aws/ec2/ftrs-dos-ENVIRONMENT-account-wide-performance-ec2-logs"
           }
         ]
       }