CompatHelper: bump compat for EnzymeCore to 0.7 for package test, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the EnzymeCore package from 0.6 to 0.6, 0.7 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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.47%. Comparing base (2bc717c) to head (a6bcd00).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #582      +/-   ##
==========================================
- Coverage   84.50%   84.47%   -0.04%     
==========================================
  Files          28       28              
  Lines        3207     3207              
==========================================
- Hits         2710     2709       -1     
- Misses        497      498       +1     

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[coveralls]

Pull Request Test Coverage Report for Build 8104496146

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.03%) to 84.789%

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Totals
Change from base Build 8104003891:	-0.03%
Covered Lines:	2709
Relevant Lines:	3195

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💛 - Coveralls