release 4.0.0.rc2 #8175

Job	Run time
Test compatibility with Primer ViewComponents (main)	16m 30s
benchmark	1m 38s
test (Rails 7.2, Ruby 3.3)	44s
test (Rails main, Ruby head)	47s
test (Rails 8.0, Ruby 3.4)	40s
test (Rails 7.1, Ruby 3.2)	41s
coverage	9s
	21m 9s

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