Update RuboCop to 1.69 (#41884).

git-svn-id: https://svn.redmine.org/redmine/trunk@23316 e93f8b46-1217-0410-a6f0-8f06a7374b81

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config --exclude-limit 20 --no-offense-counts --no-auto-gen-timestamp`
-# using RuboCop version 1.68.0.
+# using RuboCop version 1.69.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -238,7 +238,8 @@ Lint/UnusedBlockArgument:
   Enabled: false
 
 # This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: AutoCorrect, AllowUnusedKeywordArguments, IgnoreEmptyMethods, IgnoreNotImplementedMethods.
+# Configuration parameters: AutoCorrect, AllowUnusedKeywordArguments, IgnoreEmptyMethods, IgnoreNotImplementedMethods, NotImplementedExceptions.
+# NotImplementedExceptions: NotImplementedError
 Lint/UnusedMethodArgument:
   Enabled: false
 
@@ -1328,7 +1329,7 @@ Style/ZeroLengthPredicate:
     - 'test/unit/custom_field_test.rb'
 
 # This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, AllowedPatterns.
+# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, AllowedPatterns, SplitStrings.
 # URISchemes: http, https
 Layout/LineLength:
   Max: 194

Gemfile

@@ -110,7 +110,7 @@ group :test do
   gem "capybara", ">= 3.39"
   gem 'selenium-webdriver', '>= 4.11.0'
   # RuboCop
-  gem 'rubocop', '~> 1.68.0', require: false
+  gem 'rubocop', '~> 1.69.0', require: false
   gem 'rubocop-performance', '~> 1.23.0', require: false
   gem 'rubocop-rails', '~> 2.27.0', require: false
   gem 'bundle-audit', require: false

lib/redmine/diff_table.rb

@@ -82,6 +82,7 @@ module Redmine
     private
 
     def file_name=(arg)
+      # rubocop:disable Style/FileNull
       both_git_diff = false
       if file_name.nil?
         @git_diff = true if %r{^(a/|/dev/null)}.match?(arg)
@@ -106,6 +107,7 @@ module Redmine
       else
         @file_name = arg
       end
+      # rubocop:enable Style/FileNull
     end
 
     def diff_for_added_line