Update exception message and corresponding test.

Author: bcrant

sqlmesh/integrations/github/cicd/controller.py

@@ -775,7 +775,7 @@ def deploy_to_prod(self) -> None:
         merge_status = self._get_merge_state_status()
         if merge_status.is_blocked:
             raise CICDBotError(
-                "Merge commit cannot be cleanly created. Likely missing CODEOWNERS approval. "
+                "Branch protection or ruleset requirement is likely not satisfied, e.g. missing CODEOWNERS approval. "
                 "Please check PR and resolve any issues."
             )
         if merge_status.is_dirty:

tests/integrations/github/cicd/test_github_controller.py

@@ -470,7 +470,7 @@ def test_deploy_to_prod_blocked_pr(github_client, make_controller):
     )
     with pytest.raises(
         Exception,
-        match=r"^Merge commit cannot be cleanly created. Likely missing CODEOWNERS approval.*",
+        match=r"^Branch protection or ruleset requirement is likely not satisfied, e.g. missing CODEOWNERS approval.*",
     ):
         controller.deploy_to_prod()