CompatHelper: bump compat for Optimization to 4 for package test, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Optimization package from 3 to 3, 4 for package test.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[mhauru]

Superseded by #2327

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.80%. Comparing base (78d110a) to head (13e05d7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2323   +/-   ##
=======================================
  Coverage   86.80%   86.80%           
=======================================
  Files          24       24           
  Lines        1599     1599           
=======================================
  Hits         1388     1388           
  Misses        211      211           

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[coveralls]

Pull Request Test Coverage Report for Build 10990815857

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 87.022%

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Totals
Change from base Build 10703372980:	0.0%
Covered Lines:	1388
Relevant Lines:	1595

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💛 - Coveralls