fix missing parentheses warning in Credo.Check.Params.category/2

[Eiji7]

warning: using map.field notation (without parentheses) to invoke function Credo.Check.Refactor.ModuleDependencies.category() is deprecated, you must add parentheses instead: remote.function()
  (credo 1.7.9) lib/credo/check/params.ex:74: Credo.Check.Params.category/2
  (credo 1.7.9) lib/credo/check.ex:697: Credo.Check.format_issue/3
  (credo 1.7.9) lib/credo/check/refactor/module_dependencies.ex:111: Credo.Check.Refactor.ModuleDependencies.issues_for_module/5
  (credo 1.7.9) lib/credo/check/refactor/module_dependencies.ex:89: Credo.Check.Refactor.ModuleDependencies.traverse/6
  (elixir 1.17.3) lib/macro.ex:599: Macro.traverse/4

[Eiji7]

Oh, was that intended change? In commit: 6127e70 there is a mention that module.function() notation is deprecated, but it produces warning as shown above … This warning is printed after updating credo dependency every time credo mix task is called. I'm using latest Elixir and Erlang versions.

[rrrene]

@Eiji7 Yeah, I made a mistake 😞 Will release your fix shortly! Thank you so much!

[rrrene]

@Eiji7 Your fix is part of Credo 1.7.10. Could you check?

[Eiji7]

@rrrene No warning is printed now when calling credo mix task. 👍