Allow to use turbo-rails < 3 #3

Job	Run time
RuboCop	3m 2s
Prettier	10s
RSpec (3.0, gemfiles/rails_7.0.gemfile, active_record, sqlite3, webpack)	4m 41s
RSpec (3.1, gemfiles/rails_7.0.gemfile, active_record, sqlite3, webpack)	4m 46s
RSpec (3.2, gemfiles/rails_7.0.gemfile, active_record, sqlite3, webpack)	4m 50s
RSpec (2.6, gemfiles/rails_6.0.gemfile, active_record, sqlite3, sprockets)	7m 26s
RSpec (2.7, gemfiles/rails_6.1.gemfile, active_record, sqlite3, sprockets)	5m 59s
RSpec (2.7, gemfiles/rails_6.1.gemfile, active_record, sqlite3, webpacker)	6m 15s
RSpec (3.0, gemfiles/rails_7.0.gemfile, active_record, mysql2, importmap)	5m 1s
RSpec (3.0, gemfiles/rails_7.0.gemfile, active_record, postgresql, sprockets)	4m 30s
RSpec (3.0, gemfiles/composite_primary_keys.gemfile, active_record, sqlite3, sprockets)	4m 39s
RSpec (2.7, gemfiles/rails_6.0.gemfile, mongoid, sqlite3, sprockets)	5m 58s
RSpec (3.0, gemfiles/rails_6.1.gemfile, mongoid, sqlite3, sprockets)	12m 16s
RSpec (jruby-9.3, gemfiles/rails_6.1.gemfile, active_record, mysql2, sprockets)	10m 38s
RSpec (jruby-9.3, gemfiles/rails_6.1.gemfile, mongoid, sqlite3, sprockets)	10m 23s
Coveralls	0s
	1h 30m 34s

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