Refs #39673 - Use SeedHelper.format_errors in seeds

The top-level format_errors seed helper in Foreman core is deprecated
(since 3.4) and is being removed (Foreman #39667). Call
SeedHelper.format_errors directly, which has been available since the
helper was deprecated and works on all supported Foreman versions.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: lzap

db/seeds.d/60-ssh_proxy_feature.rb

@@ -1,5 +1,5 @@
 f = Feature.where(:name => 'SSH').first_or_create
-raise "Unable to create proxy feature: #{format_errors f}" if f.nil? || f.errors.any?
+raise "Unable to create proxy feature: #{SeedHelper.format_errors(f)}" if f.nil? || f.errors.any?
 
 f = Feature.where(:name => 'Script').first_or_create
-raise "Unable to create proxy feature: #{format_errors f}" if f.nil? || f.errors.any?
+raise "Unable to create proxy feature: #{SeedHelper.format_errors(f)}" if f.nil? || f.errors.any?

db/seeds.d/90-bookmarks.rb

@@ -15,6 +15,6 @@
     b = Bookmark.where(:name => input[:name], :controller => input[:controller]).first || Bookmark.new
     b.attributes = attributes
     b.save
-    raise "Unable to create bookmark: #{format_errors b}" if b.errors.any?
+    raise "Unable to create bookmark: #{SeedHelper.format_errors(b)}" if b.errors.any?
   end
 end

db/seeds.d/95-mail_notifications.rb

@@ -18,7 +18,7 @@
     created_notification = RexMailNotification.create(notification)
     if created_notification.nil? || created_notification.errors.any?
       raise ::Foreman::Exception.new(N_("Unable to create mail notification: %s"),
-        format_errors(created_notification))
+        SeedHelper.format_errors(created_notification))
     end
   end
 end