Add newer electron versions

[dudewheresmycode]

Adds current stable electron versions to the TC build utils.

Related Issue: #3701

[lissyx]

Thanks @dudewheresmycode, do you have a successfull run of GitHub Actions to show ?

[dudewheresmycode]

@lissyx I'm not that familiar with the GitHub Actions workflow of this project. But, I think I was able to get a (mostly) successful run on my fork here:
https://github.com/dudewheresmycode/DeepSpeech/actions/runs/1451548491

I was able to get a clean build for MacOS of the electron binaries. But hit some errors on Windows and Linux builds. Hoping you can advise there.

Note: I had to update the URL for PCRE (it was timing out during builds), not sure if I should keep that change or not. I saw a couple other failures, but I think the relevant bits passed.

[lissyx]

Sorry, but it looks like there are failures, can you fix them?

[dudewheresmycode]

@lissyx, sorry but the errors in the test failures might be a bit over my head. I'm not sure they're related directly to the electron version bump.

The windows failure seems to be the main TensorFlow lib for Windows being unable to compile properly.

ERROR: D:/a/deepspeech/deepspeech/tensorflow/tensorflow/core/platform/default/BUILD:177:1: C++ compilation of rule '//tensorflow/core/platform/default:logging' failed (Exit 1): vc_installation_error.bat failed: error executing command 
  cd D:/a/deepspeech/deepspeech/.bazel_cache/output/execroot/org_tensorflow

The linux failure seems to be at the check_artifact_exists step. I don't even see an error on that one, just seems to fail after downloading artifacts.

@lissyx, have you run the current master branch through GitHub Actions recently to make sure it's all still passing without these changes?

[lissyx]

@lissyx, sorry but the errors in the test failures might be a bit over my head. I'm not sure they're related directly to the electron version bump.

The windows failure seems to be the main TensorFlow lib for Windows being unable to compile properly.

ERROR: D:/a/deepspeech/deepspeech/tensorflow/tensorflow/core/platform/default/BUILD:177:1: C++ compilation of rule '//tensorflow/core/platform/default:logging' failed (Exit 1): vc_installation_error.bat failed: error executing command 
  cd D:/a/deepspeech/deepspeech/.bazel_cache/output/execroot/org_tensorflow

The linux failure seems to be at the check_artifact_exists step. I don't even see an error on that one, just seems to fail after downloading artifacts.

If windows is failing to build, check_artifact_exists might fail as a side effect

@lissyx, have you run the current master branch through GitHub Actions recently to make sure it's all still passing without these changes?

I am not working on this project anymore, so I advise to have a look at older PRs merged on https://github.com/mozilla/DeepSpeech/commits/master and see their status.

It's possible there has been GitHub Actions specific regressions, I'd suspect the Windows ones for example. But I really have no time to investigate and fix those.