From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   2f2100c879a8..dd97324f119a  main       -> origin/main
Switched to branch 'main'
Your branch is behind 'origin/main' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at dd97324f119a [libc++][CI] Adds GCC trunk image. (#132271)