Bump codecov/codecov-action from 3 to 4 (#4003)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/tox.yml

@@ -134,7 +134,7 @@ jobs:
 
       - name: Upload coverage data
         if: ${{ startsWith(matrix.passed_name, 'py') }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           name: ${{ matrix.passed_name }}
           token: ${{ secrets.CODECOV_TOKEN }}