Allow JuliaFormatter v2

CompatHelper seems to be disabled here?

Author: ChrisRackauckas

Project.toml

@@ -20,7 +20,7 @@ ArnoldiMethod = "0.4"
 DataStructures = "0.17, 0.18"
 Documenter = "0.27"
 Inflate = "0.1.3"
-JuliaFormatter = "1"
+JuliaFormatter = "1, 2"
 SimpleTraits = "0.9"
 StableRNGs = "1"
 Statistics = "1"