chore: add linter on gyp back

Author: legendecas

.github/workflows/tests.yml

@@ -19,9 +19,19 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - run: pip install --user ruff
-    # Excluding `/gyp` directory as it is been checked in https://github.com/nodejs/gyp-next/ already
+    # `/gyp` directory is run in the next job.
     - run: ruff check --output-format=github --extend-exclude=gyp --select="E,F,PLC,PLE,UP,W,YTT" --ignore="E721,PLC1901,S101,UP031" --target-version=py38 .
 
+  lint-gyp:
+    name: Lint Gyp
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - run: pip install --user ruff
+    - name: Lint with ruff  # See gyp/pyproject.toml for settings
+      run: ruff check --output-format=github .
+      working-directory: ./gyp
+
   lint-js:
     name: Lint JS
     runs-on: ubuntu-latest