os/mac/xcode: update Clang version parsing for CLT 12.5
os/mac/xcode: update Clang version parsing for CLT 12.5

MikeMcQuaid/brew,nandub/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,claui/brew,sjackman/homebrew,EricFromCanada/brew,claui/brew,vitorgalvao/brew,sjackman/homebrew,JCount/brew,EricFromCanada/brew,Homebrew/brew,claui/brew,nandub/brew,claui/brew,sjackman/homebrew,vitorgalvao/brew,nandub/brew,EricFromCanada/brew,nandub/brew,JCount/brew,vitorgalvao/brew,Homebrew/brew,Homebrew/brew,Homebrew/brew,MikeMcQuaid/brew,EricFromCanada/brew,JCount/brew,sjackman/homebrew,vitorgalvao/brew,JCount/brew