ci: coverage info

Author: aeltorio

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Generate coverage report
         run: |
           lcov --capture --directory . --output-file coverage.info
-          lcov --remove coverage.info '/usr/*' '*/test.c' --output-file coverage.info
+          lcov --remove coverage.info '/usr/*' '*/test.c' --output-file coverage.info --ignore-errors unused
           lcov --list coverage.info
 
       - name: Upload coverage to Codecov