refactor(brew-bump): fix homebrew bump script (#5025)

* fix: source lib.sh in docker-buildx-push for tagging version

* chore: use ubuntu and update git config homebrew job

* refactor: simplify brew-bump.sh script

* Revert "fix: source lib.sh in docker-buildx-push for tagging version"

This reverts commit 2f7a3610cb1efa6bca7794d8b265001ea347cccb.