Refactor Labkit::Context to Gitlab::ApplicationContext

From Refactor Labkit::Context::LOG_KEY
To Gitlab::ApplicationContext::LOG_KEY

ee/app/services/elastic/indexing_control_service.rb

@@ -6,7 +6,7 @@ module Elastic
   # This class should only be used with sidekiq workers which extend Elastic::IndexingControl module
   class IndexingControlService
     LIMIT = 1000
-    PROJECT_CONTEXT_KEY = "#{Labkit::Context::LOG_KEY}.project"
+    PROJECT_CONTEXT_KEY = "#{Gitlab::ApplicationContext::LOG_KEY}.project"
 
     def initialize(klass)
       raise ArgumentError, "passed class must extend Elastic::IndexingControl" unless klass.include?(Elastic::IndexingControl)

ee/spec/services/elastic/indexing_control_service_spec.rb

@@ -20,7 +20,7 @@ RSpec.describe Elastic::IndexingControlService, :clean_gitlab_redis_shared_state
   end
 
   let(:stored_context) do
-    { "#{Labkit::Context::LOG_KEY}.project" => 'gitlab-org/gitlab' }
+    { "#{Gitlab::ApplicationContext::LOG_KEY}.project" => 'gitlab-org/gitlab' }
   end
 
   let(:worker_args) { [1, 2] }

lib/gitlab/application_context.rb

@@ -7,6 +7,7 @@ module Gitlab
 
     Attribute = Struct.new(:name, :type)
 
+    LOG_KEY = Labkit::Context::LOG_KEY
     KNOWN_KEYS = Labkit::Context::KNOWN_KEYS
 
     APPLICATION_ATTRIBUTES = [