Exclude non-Python files as part of changed-files action

action.yml

@@ -30,6 +30,8 @@ runs:
       id: changed-files
       if: ${{ inputs.changed-files == 'true' }}
       uses: tj-actions/changed-files@v44
+      with:
+        files: '**.py'
     - run: |
         if [ "$RUNNER_OS" == "Windows" ]; then
           python $GITHUB_ACTION_PATH/action/main.py

action/main.py

@@ -24,8 +24,6 @@ req = f"ruff{version_specifier}"
 
 # If CHANGED_FILES is not empty, split it into a list; otherwise, use SRC
 files_to_check = shlex.split(CHANGED_FILES or SRC)
-# Exclude non-Python files
-files_to_check = [f for f in files_to_check if f.endswith(".py")]
 
 proc = run(["pipx", "run", req, *shlex.split(ARGS), *files_to_check])