Merge pull request #46 from mrz1836/dependabot/github_actions/master/codecov/codecov-action-4.0.1

Bump codecov/codecov-action from 3.1.5 to 4.0.1

Author: mrz1836

.github/workflows/run-tests.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Run linter and tests
         run: make test-ci
       - name: Update code coverage
-        uses: codecov/codecov-action@v3.1.5
+        uses: codecov/codecov-action@v4.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: unittests