Fix upload to Codecov

Author: pspanja

.github/workflows/tests.yml

@@ -44,4 +44,7 @@ jobs:
             - run: composer validate --strict
             - run: composer update --prefer-dist
             - run: vendor/bin/phpunit -c ${{ matrix.phpunit }} --colors=always --coverage-clover=coverage.xml
-            - run: bash <(curl -s https://codecov.io/bash) -F ${{ matrix.coverage }}
+            - name: Upload coverage to Codecov
+              uses: codecov/codecov-action@v3
+              with:
+                  token: ${{ secrets.CODECOV_TOKEN }}