Add top-level caches for Schema::Visibility #2575

Job	Run time
lint	38s
javascript_test	27s
mongodb_test (gemfiles/mongoid_6.gemfile)	1m 58s
postgres_test (gemfiles/rails_master.gemfile, 3.3, 1)	2m 4s
mongodb_test (gemfiles/mongoid_7.gemfile)	1m 57s
postgres_test (gemfiles/rails_7.1_postgresql.gemfile, 3.3)	2m 2s
system_tests	2m 19s
test (Gemfile, 3.2)	1m 43s
test (Gemfile, 2.7)	1m 38s
test (gemfiles/rails_7.0.gemfile, 3.1)	2m 8s
test (gemfiles/rails_master.gemfile, 3.2)	2m 26s
test (gemfiles/rails_7.0.gemfile, 3.2)	1m 57s
test (gemfiles/rails_7.1.gemfile, 3.3)	2m 4s
test (gemfiles/rails_master.gemfile, 3.3, 1)	2m 19s
test (gemfiles/rails_master.gemfile, 3.3, 1, 1)	2m 25s
	28m 5s

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