Disable Credo check ApplicationConfigInModuleAttribute for now

Enable it when we require Elixir 1.10+ and we can use Application.compile_env/3

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

.credo.exs

@@ -118,6 +118,7 @@
         #
         ## Warnings
         #
+        {Credo.Check.Warning.ApplicationConfigInModuleAttribute, false},
         {Credo.Check.Warning.BoolOperationOnSameValues, []},
         {Credo.Check.Warning.ExpensiveEmptyEnumCheck, []},
         {Credo.Check.Warning.IExPry, []},