Add ESM build output for graphql-ruby-client #3553

Job	Run time
test (Gemfile, 2.7)	5m 48s
system_tests	2m 49s
javascript_test	35s
postgres_test (gemfiles/rails_master.gemfile, 3.3, 1)	3m 39s
test (gemfiles/rails_master.gemfile, 3.4, 1, 1, 1)	4m 17s
test (gemfiles/rails_8.0.gemfile, 3.3, 1)	3m 54s
mongodb_test (gemfiles/mongoid_9.gemfile)	3m 27s
mongodb_test (gemfiles/mongoid_8.gemfile)	3m 25s
test (Gemfile, head)	3m 38s
test (gemfiles/rails_8.1.gemfile, 4, 1, 1)	3m 8s
postgres_test (gemfiles/rails_7.2_postgresql.gemfile, 3.3)	3m 44s
lint	2m 13s
	40m 37s

Provide feedback