Upgrade GraphQL gem

This allows us to take advantage of new features related to
subscriptions

Gemfile

@@ -89,7 +89,7 @@ gem 'grape-entity', '~> 0.7.1'
 gem 'rack-cors', '~> 1.0.6', require: 'rack/cors'
 # GraphQL API
-gem 'graphql', '~> 1.10.5'
+gem 'graphql', '~> 1.11.4'
 # NOTE: graphiql-rails v1.5+ doesn't work: https://gitlab.com/gitlab-org/gitlab/issues/31771
 # TODO: remove app/views/graphiql/rails/editors/show.html.erb when https://github.com/rmosolgo/graphiql-rails/pull/71 is released:
 # https://gitlab.com/gitlab-org/gitlab/issues/31747

Gemfile.lock

@@ -505,7 +505,7 @@ GEM
     graphiql-rails (1.4.10)
       railties
       sprockets-rails
-    graphql (1.10.5)
+    graphql (1.11.4)
     graphql-docs (1.6.0)
       commonmarker (~> 0.16)
       escape_utils (~> 1.2)
@@ -1346,7 +1346,7 @@ DEPENDENCIES
   grape-path-helpers (~> 1.3)
   grape_logging (~> 1.7)
   graphiql-rails (~> 1.4.10)
-  graphql (~> 1.10.5)
+  graphql (~> 1.11.4)
   graphql-docs (~> 1.6.0)
   grpc (~> 1.30.2)
   gssapi