chore(deps): update codecov/codecov-action action to v4

Author: renovate[bot]

.github/workflows/code_coverage.yaml

@@ -30,7 +30,7 @@ jobs:
       - run: composer install --prefer-dist --no-progress --no-suggest
       - run: php vendor/bin/phpunit --coverage-clover build/logs/clover.xml
 
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
           files: build/logs/clover.xml # optional