[llvm-branch-commits] [CI] Do Not Consider a Job Failed if Steps Were Skipped (PR #127279)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/127279

This patch makes it so that skipped steps do not cause a job to be
considered failed. The windows premerge jobs currently skip the
build/test step if there are no projects to build/test. These show up as
failures in the dashboard even though everything executed perfectly
fine.