fix: Explicitly list files

.github/workflows/ruff_lint.yml

@@ -20,13 +20,15 @@ jobs:
     steps:
       - name: checkout repo content
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-      - name: List directory contents
-        run: |
-          ls
-          ls src
-          ls src/lib
       - name: Install and run Ruff linter
         uses: chartboost/ruff-action@e18ae971ccee1b2d7bbef113930f00c670b78da4 # v1.0.0
         with:
-          src: './src/lib/'
-
+          src: |
+            'src/main.py
+            'src/lib/aes.py'
+            'src/lib/atclient.py'
+            'src/lib/iv_nonce.py'
+            'src/lib/logging.py'
+            'src/lib/ntp_client.py'
+            'src/lib/pem_service.py'
+            'src/lib/uasn1.py'