Refactor code quality workflow to explicitly name checkout step and e… (#2)

Changes
- Added explicit naming for checkout step in GitHub Actions workflow
- Configured workflow to run on pull request events (synchronize,
opened, reopened) and pushes to main branch
- Set up initial linting step in the CI pipeline

Author: anatolyshipitz

.github/workflows/code-quality.yml

@@ -8,10 +8,11 @@ on:
       - main
 
 jobs:
-  test:
+  lint:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
-    - name: Lint
-      run: echo "Linting..."
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Lint
+        run: echo "Linting..."