Suppress Layout/ClassStructure offense

Follow up rubocop/rubocop#11329

Author: koic

tasks/changelog.rb

@@ -77,6 +77,19 @@ def github_user
       user
     end
   end
+
+  def self.pending?
+    entry_paths.any?
+  end
+
+  def self.entry_paths
+    Dir["#{ENTRIES_PATH}*"]
+  end
+
+  def self.read_entries
+    entry_paths.to_h { |path| [path, File.read(path)] }
+  end
+
   attr_reader :header, :rest
 
   def initialize(content: File.read(PATH), entries: Changelog.read_entries)
@@ -107,18 +120,6 @@ def merge_content
     merged_content << EOF
   end
 
-  def self.pending?
-    entry_paths.any?
-  end
-
-  def self.entry_paths
-    Dir["#{ENTRIES_PATH}*"]
-  end
-
-  def self.read_entries
-    entry_paths.to_h { |path| [path, File.read(path)] }
-  end
-
   def new_contributor_lines
     contributors
       .map { |user| format(CONTRIBUTOR, user: user) }