Fix Style/FetchEnvVar cop in repo.rake (#34903)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

.rubocop_todo.yml

@@ -33,7 +33,6 @@ Style/FetchEnvVar:
   Exclude:
     - 'config/initializers/2_limited_federation_mode.rb'
     - 'config/initializers/paperclip.rb'
-    - 'lib/tasks/repo.rake'
 
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: MinBodyLength, AllowConsecutiveConditionals.

lib/tasks/repo.rake

@@ -57,7 +57,7 @@ namespace :repo do
                 response = nil
 
                 loop do
-                  response = HTTP.headers('Authorization' => "token #{ENV['GITHUB_API_TOKEN']}").get("https://api.github.com/repos/#{REPOSITORY_NAME}/pulls/#{pull_request_number}")
+                  response = HTTP.headers('Authorization' => "token #{ENV.fetch('GITHUB_API_TOKEN')}").get("https://api.github.com/repos/#{REPOSITORY_NAME}/pulls/#{pull_request_number}")
 
                   if response.code == 403
                     sleep_for = (response.headers['X-RateLimit-Reset'].to_i - Time.now.to_i).abs