* remove drone & dead code in pkg/build; update go modules
* remove .drone.star
* Remove drone scripts and drone references in Makefile
* make update-workspace
* remove deadcode tool
* Remove daggerbuild/scripts: deadcode
* Remove drone files / folders in CODEOWNERS
* make update-workspace
* remove more dead code
* Add grafana-build action and workflow
* Fix the --verify flag stalling on tar.gz builds
* Add event sources for main / release branches
* Update CODEOWNERS