Fix provider update module packaging

test_app.py

@@ -4357,5 +4357,12 @@ seg-3.ts
         )
 
 
+class DockerfilePackagingTests(unittest.TestCase):
+    def test_provider_updates_module_is_copied_into_image(self):
+        dockerfile = (ROOT / "Dockerfile").read_text(encoding="utf-8")
+
+        self.assertIn("provider_updates.py", dockerfile)
+
+
 if __name__ == "__main__":
     unittest.main()