Update codecov.yml

Author: tonigi

.github/workflows/codecov.yml

@@ -21,6 +21,6 @@ jobs:
         pytest --cov=dtw --cov-report=xml
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         token: ${{ secrets.CODECOV_TOKEN }}