chore: disable discord alerts for backwards-compatibility

[bradleystachurski]

The discord alerts channel is too noisy with these alerts, especially while we know there are outstanding fixes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (04d32a7) 58.06% compared to head (56c6dc6) 58.06%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4139   +/-   ##
=======================================
  Coverage   58.06%   58.06%           
=======================================
  Files         192      192           
  Lines       42972    42972           
=======================================
  Hits        24951    24951           
  Misses      18021    18021           

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[justinmoon]

Do we plan to re-enable them in the future?

[bradleystachurski]

Do we plan to re-enable them in the future?

Yep 👍

I think a sane approach is:

1. re-enable once all backwards-compatibility tests are fixed (only outstanding PR)
2. once CI runs fast enough, make the workflow required to pass before merging

Does that sound reasonable?