CompatHelper: bump compat for Flux in [weakdeps] to 0.16, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -77,7 +77,7 @@ DocStringExtensions = "0.8, 0.9"
 FileIO = "1"
 FiniteDiff = "2"
 FiniteDifferences = "0.12"
-Flux = "0.14"
+Flux = "0.14, 0.16"
 FunctionalStateMachine = "0.2.9, 0.3"
 Gadfly = "1"
 Interpolations = "0.15"