🛠️ Repo: Add Electron build to matrix?

[boneskull]

I'd like to see an assertion that Mocha works in Electron.

maybe using dont-break (#3013) against electron-mocha would be sufficient? thoughts?

cc @mochajs/core

[craigtaub]

@boneskull based on the issues you had with dont-break (in #3013) should this be closed or is it still worth investigating?

[boneskull]

A citgm-like suite of tests for Mocha would be good to explore.

[outsideris]

I like the idea like citgm.