Added macOS builds for CI

10 jobs for mac-n-cheese in 2 minutes and 43 seconds (queued for 12 seconds)
latest
Name Stage Failure
failed
macos autotools Build
Done.

Error installing updates.
==> /usr/bin/sudo /bin/rm -f /tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress
==> /usr/bin/sudo /usr/bin/xcode-select --switch /Library/Developer/CommandLineTools
xcode-select: error: invalid developer directory '/Library/Developer/CommandLineTools'
Failed during: /usr/bin/sudo /usr/bin/xcode-select --switch /Library/Developer/CommandLineTools
Cleaning up file based variables
ERROR: Job failed: Process exited with status 1