Merge pull request #1182 from SciML/update-datastructures-v0.19

Update DataStructures.jl compatibility to v0.19

Author: ChrisRackauckas

Project.toml

@@ -73,7 +73,7 @@ ArrayInterface = "7.8"
 CUDA = "5"
 ChainRulesCore = "1"
 ConcreteStructs = "0.2.3"
-DataStructures = "0.18"
+DataStructures = "0.18, 0.19"
 Distributions = "0.25"
 DocStringExtensions = "0.9"
 EnumX = "1"