Decrease ABC threshold to 54.28

.rubocop.yml

@@ -624,7 +624,7 @@ Style/PredicateName:
 # branches, and conditions.
 Metrics/AbcSize:
   Enabled: true
-  Max: 55.25
+  Max: 54.28
 
 # This cop checks if the length of a block exceeds some maximum value.
 Metrics/BlockLength:

changelogs/unreleased/28202_decrease_abc_threshold_step5.yml

@@ -0,0 +1,5 @@
+---
+title: Decrease ABC threshold to 54.28
+merge_request: 14920
+author: Maxim Rydkin
+type: other

lib/backup/manager.rb

@@ -137,10 +137,12 @@ module Backup
 
         # restoring mismatching backups can lead to unexpected problems
         if settings[:gitlab_version] != Gitlab::VERSION
-          $progress.puts 'GitLab version mismatch:'.color(:red)
-          $progress.puts "  Your current GitLab version (#{Gitlab::VERSION}) differs from the GitLab version in the backup!".color(:red)
-          $progress.puts '  Please switch to the following version and try again:'.color(:red)
-          $progress.puts "  version: #{settings[:gitlab_version]}".color(:red)
+          $progress.puts(<<~HEREDOC.color(:red))
+            GitLab version mismatch:
+              Your current GitLab version (#{Gitlab::VERSION}) differs from the GitLab version in the backup!
+              Please switch to the following version and try again:
+              version: #{settings[:gitlab_version]}
+          HEREDOC
           $progress.puts
           $progress.puts "Hint: git checkout v#{settings[:gitlab_version]}"
           exit 1