Added pause if fan speed can't be set under macOS

* This can be removed after a bit of real-world testing

scripts/wk/hw/diags.py

@@ -1623,6 +1623,8 @@ def set_apple_fan_speed(speed):
       std.print_error(f'Failed to set fans to {speed}')
       for line in str(err).splitlines():
         std.print_warning(f'  {line.strip()}')
+      std.print_standard('Please upload the logs for review')
+      std.pause()
   elif PLATFORM == 'Linux':
     cmd = ['apple-fans', speed]
     exe.run_program(cmd, check=False)