chore: Health check only backend, caddy and RTS (#32891)

This is to avoid low-impact failures from getting the whole container to
restart.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Bug Fixes**
- Modified health check to focus on critical services (`editor`, `rts`,
`backend`) for more efficient monitoring.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

deploy/docker/fs/opt/appsmith/healthcheck.sh

@@ -32,7 +32,7 @@ while read -r line
         fi
       fi
     fi
-  done <<< $(supervisorctl status all)
+  done <<< $(supervisorctl status editor rts backend)
 if [ $healthy == true ]; then
   exit 0
 else