fix typo in github-actions-tox.yml

Author: astanin

.github/workflows/github-actions-tox.yml

@@ -12,7 +12,7 @@ jobs:
         python-version: ['3.9', '3.10', '3.11', '3.12']
 
     steps:
-    - uses: actions/checkout@v34
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with: