chore: Lintエラーの許容範囲を20に設定

detekt.yml

@@ -1,3 +1,6 @@
+build:
+  maxIssues: 20
+
 style:
   ClassOrdering:
     active: true
@@ -68,6 +71,10 @@ complexity:
     ignoreOverridden: true
     ignorePrivate: true
 
+  LongMethod:
+    active: true
+    excludes:
+      - "**/test/**"
 
 exceptions:
   ExceptionRaisedInUnexpectedLocation:
@@ -104,6 +111,8 @@ formatting:
 naming:
   FunctionMaxLength:
     active: true
+    excludes:
+      - "**/test/**"
 
   FunctionMinLength:
     active: true