CI: Update macOS image used
gitlab removed macos-12-xcode-13, and provide macos-12-xcode-14 instead.
Failure with old image: https://gitlab.com/tango-controls/pytango/-/jobs/5543443664
gitlab removed macos-12-xcode-13, and provide macos-12-xcode-14 instead.
Failure with old image: https://gitlab.com/tango-controls/pytango/-/jobs/5543443664