Error: Subject line has to contain a commit type, e.g.: "Change: blabla" or a merge commit e.g.: "Merge xxx". Valid types are: Change - API breaking change Feature - API compatible new feature Improve - Become better without functional changes Perf - Performance improvement Dep - dependency update Doc - doc update Test - test udpate CI - CI workflow update Refactor - refactor without function change. Fix - fix bug Fixdoc - fix doc Fixup - minor change: e.g., fix sth mentioned in a review. BumpVer - Bump to a new version. Chore - Nothing important. Build(deps) - bot: dependabot.