Merge pull request #942 from KulaginVladimir/codecov

Upgrade codecov action to v5

Author: RemDelaporteMathurin

.github/workflows/ci.yml

@@ -32,6 +32,6 @@ jobs:
         pytest test/ --cov festim --cov-report xml --cov-report term
     
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         token: ${{ secrets.CODECOV_TOKEN }}