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

[github-actions]

This pull request changes the compat entry for the Optimization package from 3 to 3, 4.
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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.80%. Comparing base (3c91eec) to head (5883106).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2348      +/-   ##
==========================================
- Coverage   86.86%   86.80%   -0.07%     
==========================================
  Files          24       24              
  Lines        1599     1599              
==========================================
- Hits         1389     1388       -1     
- Misses        210      211       +1     

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[coveralls]

Pull Request Test Coverage Report for Build 11062373418

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.06%) to 87.022%

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Totals
Change from base Build 11050401755:	-0.06%
Covered Lines:	1388
Relevant Lines:	1595

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💛 - Coveralls