Fix last commit for files in lib

Refs #1133

Author: rrrene

lib/credo/check/design/skip_test_without_comment.ex

@@ -3,7 +3,7 @@ defmodule Credo.Check.Design.SkipTestWithoutComment do
     id: "EX2003",
     base_priority: :normal,
     param_defaults: [
-      files: %{included: ["**/*_test.exs"]}
+      files: %{included: ["test/**/*_test.exs", "apps/**/test/**/*_test.exs"]}
     ],
     explanations: [
       check: """

lib/credo/check/refactor/pass_async_in_test_cases.ex

@@ -3,7 +3,7 @@ defmodule Credo.Check.Refactor.PassAsyncInTestCases do
     id: "EX4031",
     base_priority: :normal,
     param_defaults: [
-      files: %{included: ["**/*_test.exs"]}
+      files: %{included: ["test/**/*_test.exs", "apps/**/test/**/*_test.exs"]}
     ],
     explanations: [
       check: """

lib/credo/check/warning/wrong_test_file_extension.ex

@@ -3,7 +3,7 @@ defmodule Credo.Check.Warning.WrongTestFileExtension do
     id: "EX5025",
     base_priority: :high,
     param_defaults: [
-      files: %{included: ["**/*_test.ex"]}
+      files: %{included: ["test/**/*_test.ex", "apps/**/test/**/*_test.ex"]}
     ],
     explanations: [
       check: """