release 4.0.0.rc2 #8174

Job	Run time
benchmark	1m 39s
test (Rails 8.0, Ruby 3.4)	41s
test (Rails 7.1, Ruby 3.2)	1m 4s
Test compatibility with Primer ViewComponents (main)	16m 49s
test (Rails 7.2, Ruby 3.3)	47s
test (Rails main, Ruby head)	47s
coverage	0s
	21m 47s

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