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Bump activesupport from 8.0.3 to 8.1.0 #8398

Job	Run time
test (Rails 7.2, Ruby 3.3)	1m 48s
benchmark	8s
test (Rails main, Ruby head)	45s
Test compatibility with Primer ViewComponents (main)	18m 48s
test (Rails 8.0, Ruby 3.4)	10s
test (Rails 8.1, Ruby 3.4)	8s
test (Rails 7.1, Ruby 3.2)	55s
coverage	0s
	22m 42s