Support Codecov v4 changes (#175)

Pass `CODECOV_TOKEN` to shared workflow

Author: TheJulianJES

.github/workflows/ci.yml

@@ -14,3 +14,5 @@ jobs:
       PYTHON_VERSION_DEFAULT: 3.9.15
       PRE_COMMIT_CACHE_PATH:  ~/.cache/pre-commit
       MINIMUM_COVERAGE_PERCENTAGE: 100
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}