`qmk doctor`: show arch for macOS (#17356)

lib/python/qmk/cli/doctor/macos.py

@@ -8,6 +8,6 @@ from .check import CheckStatus
 def os_test_macos():
     """Run the Mac specific tests.
     """
-    cli.log.info("Detected {fg_cyan}macOS %s{fg_reset}.", platform.mac_ver()[0])
+    cli.log.info("Detected {fg_cyan}macOS %s (%s){fg_reset}.", platform.mac_ver()[0], 'Apple Silicon' if platform.processor() == 'arm' else 'Intel')
 
     return CheckStatus.OK