Exclude logging output from emulator list

[rmartin16]

Changes

• Recently, emulator -list-avds started including logging output in the list of AVDs...so, it's ignored now

>>> Running Command:
>>>     /opt/sdks/Android/sdk/emulator/emulator -list-avds
>>> Working Directory:
>>>     /home/russell/tmp/beeware/helloworld
>>> Command Output:
>>>     INFO    | Storing crashdata in: /tmp/android-russell/emu-crash-34.1.19.db, detection is enabled for process: 2413840
>>>     Pixel_3a_API_31
>>>     Pixel_5_API_31
>>>     Pixel_6a_API_31
>>>     Pixel_7a_API_34
>>>     Pixel_8_Pro_API_31
>>>     beePhone
>>> Return code: 0

Select device:

  1) Unknown device (offline) (emulator-5554)
  2) @INFO    | Storing crashdata in: /tmp/android-russell/emu-crash-34.1.19.db, detection is enabled for process: 2413840 (emulator)
  3) @Pixel_3a_API_31 (emulator)
  4) @Pixel_5_API_31 (emulator)
  5) @Pixel_6a_API_31 (emulator)
  6) @Pixel_7a_API_34 (emulator)
  7) @Pixel_8_Pro_API_31 (emulator)
  8) @beePhone (emulator)
  9) Create a new Android emulator

>

Other mayhem caused by this logging.

PR Checklist:

• All new features have been tested
• All new features have been documented
• I have read the CONTRIBUTING.md file
• I will abide by the code of conduct

[freakboy3742]

All looks fairly straightforward. I've got a mild concern that the INFO | prefix might not match with time, but we can cross that bridge once we have data indicating it's a problem - it's going to be near impossible to work out how it might shift in future releases.