Add support to release Linux aarch64 wheels

[odidev]

Aarch64 wheel for python version 3.7 is getting built on GHA. It looks that the wheel is released successfully in GitHub, but not on Pypi.

@lissyx and Team Since Aarch64 is now supported by PyPI, it would be really helpful if you could upload Aarch64 wheels on PyPI as well.

[lissyx]

@odidev Please avoid spamming issues, I have already replied to you in https://github.com/mozilla/DeepSpeech/issues/3521#issuecomment-929978075.

[ftyers]

See #3693