CompatHelper: bump compat for FillArrays to 1 for package docs, (keep existing compat) (#471)

This pull request changes the compat entry for the `FillArrays` package from `0.13` to `0.13, 1` for package docs.
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.

Author: github-actions[bot]

docs/Project.toml

@@ -12,7 +12,7 @@ StableRNGs = "860ef19b-820b-49d6-a774-d7a799459cd3"
 DataStructures = "0.18"
 Distributions = "0.25"
 Documenter = "0.27"
-FillArrays = "0.13"
+FillArrays = "0.13, 1"
 LogDensityProblems = "2"
 MLUtils = "0.3, 0.4"
 Setfield = "0.7.1, 0.8, 1"