CompatHelper: bump compat for "FillArrays" to "0.12" (#106)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

Project.toml

@@ -20,7 +20,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 ArrayLayouts = "0.7"
 BandedMatrices = "0.16"
 BlockArrays = "0.15.1, 0.16"
-FillArrays = "0.11"
+FillArrays = "0.11, 0.12"
 InfiniteArrays = "0.10, 0.11"
 Infinities = "0.1"
 IntervalSets = "0.5"