feat: Update minimum supported Electron version

[timfish]

The recently released v6.0.0 of the Electron SDK bumps the minimum supported version of Electron to v23.

It looks like we didn't update this for the last major version!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.50%. Comparing base (9edc8a5) to head (c7e266d).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #800      +/-   ##
==========================================
- Coverage   49.72%   49.50%   -0.23%     
==========================================
  Files          52       52              
  Lines        3505     3505              
  Branches      823      812      -11     
==========================================
- Hits         1743     1735       -8     
- Misses       1627     1769     +142     
+ Partials      135        1     -134     

Flag	Coverage Δ
e2e-tests	78.46% <ø> (-6.16%)	⬇️
unit-tests	48.38% <ø> (ø)

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