CompatHelper: bump compat for "IntervalSets" to "0.4" (#27)

Author: github-actions[bot]

Project.toml

@@ -30,7 +30,7 @@ FFTW = "1.1"
 FastGaussQuadrature = "0.4"
 FastTransforms = "0.8"
 FillArrays = "0.8"
-IntervalSets = "0.3.1"
+IntervalSets = "0.3.1, 0.4"
 Reexport = "0.2"
 SpecialFunctions = "0.8, 0.9, 0.10"
 julia = "1.3"