CompatHelper: bump compat for Flux to 0.14, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -40,7 +40,7 @@ DiffEqBase = "6"
 DiffEqUncertainty = "1"
 DifferentialEquations = "7"
 Distributions = "0.25"
-Flux = "0.13"
+Flux = "0.13, 0.14"
 ForwardDiff = "0.10"
 Franklin = "0.10"
 IntervalArithmetic = "0.20"