refactor: always test against post-1.0 versions of Electron

[malept]

• I have read the contribution documentation for this project.
• I agree to follow the code of conduct that this project follows, as appropriate.
• The changes are appropriately documented (if applicable).
• The changes have sufficient test coverage (if applicable).
• The testsuite passes successfully on my local machine (if applicable).

Summarize your changes:

Use more recent and fewer versions of Electron in tests.

[codecov]

Codecov Report

Merging #1012 into v14-develop will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           v14-develop   #1012   +/-   ##
===========================================
  Coverage          100%    100%           
===========================================
  Files               13      13           
  Lines              677     677           
===========================================
  Hits               677     677

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 93ceda6...a074316. Read the comment docs.