Add GraphQL::Query::Partial #2644

Job	Run time
lint	21s
javascript_test	27s
mongodb_test (gemfiles/mongoid_6.gemfile)	1m 25s
postgres_test (gemfiles/rails_master.gemfile, 3.3, 1)	1m 43s
mongodb_test (gemfiles/mongoid_7.gemfile)	1m 25s
postgres_test (gemfiles/rails_7.1_postgresql.gemfile, 3.3)	1m 37s
system_tests	32s
test (Gemfile, 3.2)	1m 21s
test (Gemfile, 2.7)	1m 11s
test (gemfiles/rails_7.0.gemfile, 3.1)	1m 45s
test (gemfiles/rails_master.gemfile, 3.2)	2m 12s
test (gemfiles/rails_7.0.gemfile, 3.2)	1m 43s
test (gemfiles/rails_7.1.gemfile, 3.3)	1m 46s
test (gemfiles/rails_master.gemfile, 3.3, 1)	1m 58s
test (gemfiles/rails_master.gemfile, 3.3, 1, 1)	1m 57s
	21m 23s

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