build: do not fail build job on 'negative' coverage report

codecov is just for tracking progress on the coverage. It should not
fail the build.

Signed-off-by: Daniel Wagner <wagi@kernel.org>

Author: igaw

.github/workflows/coverage.yml

@@ -23,4 +23,4 @@ jobs:
       - uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: true
+          fail_ci_if_error: false