CompatHelper: bump compat for "IntervalSets" to "0.4" (#42)

Author: github-actions[bot]

Project.toml

@@ -13,7 +13,7 @@ QuasiArrays = "c4ea9172-b204-11e9-377d-29865faadc5c"
 [compat]
 BandedMatrices = "0.14.2"
 FillArrays = "0.8.2"
-IntervalSets = "0.3.2"
+IntervalSets = "0.3.2, 0.4"
 LazyArrays = "0.14.11, 0.15"
 QuasiArrays = "0.1.1"
 julia = "1.3"