CompatHelper: bump compat for FillArrays to 1, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the FillArrays package from 0.5, 0.6, 0.8, 0.9, 0.10, 0.11, 0.12, 0.13 to 0.5, 0.6, 0.8, 0.9, 0.10, 0.11, 0.12, 0.13, 1.
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

Patch coverage has no change and project coverage change: -0.62 ⚠️

Comparison is base (afd072a) 97.74% compared to head (dce818d) 97.12%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #26      +/-   ##
==========================================
- Coverage   97.74%   97.12%   -0.62%     
==========================================
  Files           3        3              
  Lines         310      348      +38     
==========================================
+ Hits          303      338      +35     
- Misses          7       10       +3     

Flag	Coverage Δ
unittests	97.12% <ø> (-0.62%)	⬇️

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see 3 files with indirect coverage changes

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