chore: update test_create_service_config_rest (#12430)

- [ ] Regenerate this pull request now.

feat: add `Publishing.rest_reference_documentation_uri` to aid client
library publication
feat: add `ErrorReason.LOCATION_POLICY_VIOLATED` enum value
docs: minor tweaks to various comments

PiperOrigin-RevId: 613949885

Source-Link:
googleapis/googleapis@dba3883

Source-Link:
googleapis/googleapis-gen@71e160a
Copy-Tag:
eyJwIjoicGFja2FnZXMvZ29vZ2xlLWNsb3VkLXNlcnZpY2UtbWFuYWdlbWVudC8uT3dsQm90LnlhbWwiLCJoIjoiNzFlMTYwYTQxMzhjODU5NjFhMjVjNmFjOWQwMTNiMGM3ZjJkNzI2NiJ9

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Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-cloud-service-management/tests/unit/gapic/servicemanagement_v1/test_service_manager.py

@@ -7167,6 +7167,7 @@ def test_create_service_config_rest(request_type):
                 }
             ],
             "proto_reference_documentation_uri": "proto_reference_documentation_uri_value",
+            "rest_reference_documentation_uri": "rest_reference_documentation_uri_value",
         },
         "config_version": {"value": 541},
     }