Skip RG deletion step

lisa/sut_orchestrator/azure/platform_.py

@@ -657,6 +657,7 @@ def _delete_environment(self, environment: Environment, log: Logger) -> None:
             )
             if not az_rg_exists:
                 return
+            return
             log.info(
                 f"deleting resource group: {resource_group_name}, "
                 f"wait: {self._azure_runbook.wait_delete}"