Worked on stabilizing the test infrastructure for the konflux-ci/release-service-catalog repository, focusing on improving reliability in continuous integration pipelines. Addressed a persistent issue with flaky test outcomes by updating the upload_rpm_data mock to include an explicit return statement, ensuring deterministic success codes during parallel CI runs. This change reduced nondeterministic failures and accelerated feedback for developers, supporting safer and more efficient release processes. Utilized Shell scripting and applied best practices in mocking and automated testing to enhance CI/CD workflows. Documented the rationale behind these changes to support future maintainability and prevent regressions in the test suite for ongoing development.