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

[github-actions[bot]]

This pull request changes the compat entry for the FillArrays package from 0.12, 0.13 to 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[bot]]

Codecov Report

Patch coverage has no change and project coverage change: -2.67% :warning:

Comparison is base (198ee9f) 45.98% compared to head (f7b4984) 43.31%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #265 +/- ## ========================================== - Coverage 45.98% 43.31% -2.67% ========================================== Files 43 43 Lines 1344 1279 -65 ========================================== - Hits 618 554 -64 + Misses 726 725 -1 ``` [see 23 files with indirect coverage changes](https://app.codecov.io/gh/JuliaMath/MeasureTheory.jl/pull/265/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaMath)

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[github-actions[bot]]

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