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Declare actionview as explicit gem dependency #8362

Job	Run time
benchmark	1m 33s
test (Rails main, Ruby head)	11s
test (Rails 7.1, Ruby 3.2)	47s
test (Rails 7.2, Ruby 3.3)	37s
Test compatibility with Primer ViewComponents (main)	18m 42s
test (Rails 8.0, Ruby 3.4)	40s
coverage	0s
	22m 30s