Update codecov/codecov-action digest to fb8b358 (#318)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -128,7 +128,7 @@ jobs:
         run: make -j2 test
 
       - name: Publish Unit Test Coverage
-        uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6
+        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v6
         with:
           flags: unittests
           file: _output/tests/linux_amd64/coverage.txt