Use gitlab_environment for ldap rake task

changelogs/unreleased/52993-ldap-rename_provider-rake-task-broken.yml

+---
+title: Use gitlab_environment for ldap rake task
+merge_request: 22582
+author:
+type: fixed

lib/tasks/gitlab/ldap.rake

 namespace :gitlab do
   namespace :ldap do
     desc 'GitLab | LDAP | Rename provider'
-    task :rename_provider, [:old_provider, :new_provider] => :environment  do |_, args|
+    task :rename_provider, [:old_provider, :new_provider] => :gitlab_environment do |_, args|
       old_provider = args[:old_provider] ||
         prompt('What is the old provider? Ex. \'ldapmain\': '.color(:blue))
       new_provider = args[:new_provider] ||