trying this

Author: lrvideckis

.github/workflows/programming_team_code_ci.yml

@@ -9,7 +9,7 @@ jobs:
   library_checker_aizu:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v1
     - name: Set up Python
       uses: actions/setup-python@v1
     - name: Install dependencies