[llvm] Reapply [workflows] Split pr-code-format into two parts to make it more secure (#78215) (PR #80495)

[Tom Stellard via llvm-commits]

tstellar wrote:

@jyknight @boomanaiden154 So it's OK to commit this as-is and then we switch to using the merge commit in a follow up patch?

https://github.com/llvm/llvm-project/pull/80495