Add support for modern Electron releases

[dudewheresmycode]

Looking to integrate this project with Electron and I noticed you have some support, but the javascript package only provides prebuilt binaries up to Electron v11. However, the current supported releases of Electron are: v15.3.1, v14.2.1, v13.6.1 (https://releases.electronjs.org/)

I'm hoping the solution is as easy as adding additional versions to this line:
https://github.com/mozilla/DeepSpeech/blob/master/taskcluster/tc-all-vars.sh#L98

[reuben]

FWIW I've just updated the Coqui STT builds to cover newer NodeJS and ElectronJS versions over in coqui-ai/STT#2018

Should be available in npm soon, I'll trigger a new alpha version.

[rjstalb]

I'm trying to get the nodejs binaries built against node versions but getting nowhere. Am I supposed to install electron manually or against a specific version? am I using the wrong node versions?

• v10.4.0
• v12.22.7
• v14.18.1
• v16.10.0

Output:

[ftyers]

Check out #3693.