CompatHelper: bump compat for DomainSets to 0.6, (keep existing compat) (#134)

Co-authored-by: CompatHelper Julia <compathelper_noreply@julialang.org>

Author: github-actions[bot]

Project.toml

@@ -30,7 +30,7 @@ BlockArrays = "0.16.14"
 BlockBandedMatrices = "0.11.5"
 ClassicalOrthogonalPolynomials = "0.6.9"
 ContinuumArrays = "0.11"
-DomainSets = "0.5"
+DomainSets = "0.5, 0.6"
 FastTransforms = "0.14"
 FillArrays = "0.13"
 HarmonicOrthogonalPolynomials = "0.3"