Bump actions/setup-node from 3 to 4 #240

Job	Run time
Tests (2.7, rails_6.1, stable)	51s
Tests (2.7, rails_7.0, stable)	40s
Tests (2.7, rails_7.1, stable)	39s
Tests (3.0, rails_6.1, stable)	27s
Tests (3.0, rails_7.0, stable)	23s
Tests (3.0, rails_7.1, stable)	20s
Tests (3.1, rails_6.1, stable)	26s
Tests (3.1, rails_7.0, stable)	21s
Tests (3.1, rails_7.1, stable)	25s
Tests (3.2, rails_7.0, stable)	22s
Tests (3.2, rails_7.1, stable)	19s
Tests (2.7, rails_edge, experimental)	50s
Tests (3.0, rails_edge, experimental)	24s
Tests (3.1, rails_edge, experimental)	30s
Tests (3.2, rails_edge, experimental)	34s
Tests (head, rails_6.1, experimental)	35s
Tests (head, rails_7.0, experimental)	32s
Tests (head, rails_7.1, experimental)	37s
Tests (head, rails_edge, experimental)	37s
Coverage	7s
	9m 59s

Provide feedback