Fix coverage upload. (#180)

Author: wRAR

Diff for: .github/workflows/main.yml

@@ -65,4 +65,6 @@ jobs:
         tox
 
     - name: Upload to codecov
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v5
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}