Upgrade gTTS to fix Google voice

[krisgesling]

Description

Restore Google voice functionality with updated Python package.

Fixes #2825

Thanks to @goldyfruit for diagnosing and testing the updated package.

How to test

Switch voice to Google and see if it works against gTTS 2.2.0 vs 2.2.2

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• CLA

[devops-mycroft]

Voight Kampff Integration Test Succeeded (Results)

[forslund]

Note that this will not automatically update 2.2.2 to 2.2.3 if a new release is pushed upstream.

[forslund]

Looks like the gtts language list has been updated so en-us is just en and the test case needs to be updated attest_google_tts.py:L17

[krisgesling]

Thanks for pointing out the deprecated lang codes. I've also removed these from the cached list of supported languages, and switched all references to the two-character "en".

And yeah, the relaxed requirement definition won't automatically update the package but figured it would at least work for new installs. Still need to setup the automated testing on all these so we can proactively and confidently update rather than wait for things to break.

[devops-mycroft]

Voight Kampff Integration Test Failed (Results).
Mycroft logs are also available: skills.log, audio.log, voice.log, bus.log, enclosure.log

[forslund]

Looks good,

gtts.tts_langs() returns zh-CN and zh-TW (captal letters) in addition to the updated set, reading the code they look active but I might be wrong.

[devops-mycroft]

Voight Kampff Integration Test Succeeded (Results)