CompatHelper: bump compat for Functors to 0.3, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -30,7 +30,7 @@ CUDA = "3.3"
 ChainRulesCore = "1"
 DataStructures = "0.18"
 Flux = "0.13"
-Functors = "0.2"
+Functors = "0.2, 0.3"
 Graphs = "1.4"
 KrylovKit = "0.5"
 MLDatasets = "0.6, 0.7"