Improve CI workflow #76

Job	Run time
rails_7_0, ruby 2.7 (stable)	1m 32s
rails_7_1, ruby 2.7 (stable)	1m 36s
rails_7_0, ruby 3.0 (stable)	25s
rails_7_1, ruby 3.0 (stable)	26s
rails_7_0, ruby 3.1 (stable)	27s
rails_7_1, ruby 3.1 (stable)	28s
rails_7_0, ruby 3.2 (stable)	25s
rails_7_1, ruby 3.2 (stable)	25s
rails_7_0, ruby 3.3 (stable)	26s
rails_7_1, ruby 3.3 (stable)	24s
rails_7_0, ruby head (experimental)	1m 25s
rails_7_1, ruby head (experimental)	1m 20s
rails_edge, ruby 3.1 (experimental)	30s
rails_edge, ruby 3.2 (experimental)	27s
rails_edge, ruby 3.3 (experimental)	27s
rails_edge, ruby head (experimental)	1m 26s
	12m 9s

Provide feedback