CompatHelper: bump compat for TransformVariables to 0.7, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -70,7 +70,7 @@ Static = "0.5, 0.6"
 StaticArraysCore = "1"
 StatsBase = "0.32, 0.33"
 StatsFuns = "0.9, 1"
-TransformVariables = "0.5, 0.6"
+TransformVariables = "0.5, 0.6, 0.7"
 Tricks = "0.1"
 julia = "1.6"