CompatHelper: bump compat for FastTransforms to 0.15, (keep existing compat) (#224)

Co-authored-by: CompatHelper Julia <[email protected]>

Author: github-actions[bot]

Project.toml

@@ -28,7 +28,7 @@ BlockArrays = "0.14, 0.15, 0.16"
 BlockBandedMatrices = "0.10, 0.11"
 DomainSets = "0.5, 0.6"
 FastGaussQuadrature = "0.4, 0.5"
-FastTransforms = "0.12, 0.13, 0.14"
+FastTransforms = "0.12, 0.13, 0.14, 0.15"
 FillArrays = "0.11, 0.12, 0.13"
 IntervalSets = "0.5, 0.6, 0.7"
 LazyArrays = "0.22"