CompatHelper: bump compat for "IntervalSets" to "0.6" (#55)

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

Author: github-actions[bot]

Project.toml

@@ -25,7 +25,7 @@ ContinuumArrays = "0.10"
 DomainSets = "0.5"
 FastTransforms = "0.13"
 InfiniteArrays = "0.12"
-IntervalSets = "0.5"
+IntervalSets = "0.5, 0.6"
 QuasiArrays = "0.9"
 SpecialFunctions = "1, 2"
 StaticArrays = "1"