fix: add missed \. for action.yml + raw string for regex

Author: skwde

src/check_jsonschema/catalog.py

@@ -89,7 +89,7 @@ def _githubusercontent_url(owner: str, repo: str, ref: str, path: str) -> str:
         "hook_config": {
             "name": "Validate GitHub Actions",
             "files": [
-                "action.(yml|yaml)",
+                r"action\.(yml|yaml)",
                 r"\.github/actions/(.+/)?action\.(yml|yaml)",
             ],
             "types": "yaml",