Update codecov actions

Author: janbrasna

.github/workflows/codecov.yml

@@ -6,15 +6,13 @@ jobs:
     runs-on: ubuntu-latest
     name: Codecov
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-      - name: Setup python
-        uses: actions/setup-python@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.12'
       - name: Install dependencies
         run: pip install codecov tox tox-gh-actions
-      - name: Run tox
+      - name: Run tests
         run: tox
       - uses: codecov/codecov-action@v1
         with: