test

Bump step-security/harden-runner from 2.12.1 to 2.12.2 #717

Job	Run time
ruby-versions / Generate Ruby versions	3s
test (ubuntu-latest, 2.5)	49s
test (ubuntu-latest, 2.7)	49s
test (ubuntu-latest, 3.2)	17s
test (ubuntu-latest, 3.4)	16s
test (ubuntu-latest, 2.4)	47s
test (ubuntu-latest, 2.6)	51s
test (ubuntu-latest, head)	15s
test (ubuntu-latest, 3.0)	17s
test (ubuntu-latest, truffleruby)	49s
test (ubuntu-latest, 3.3)	18s
test (windows-latest, 2.5)	1m 48s
test (ubuntu-latest, 3.1)	20s
test (windows-latest, 2.3)	1m 43s
test (windows-latest, 3.1)	1m 8s
test (ubuntu-latest, jruby-head)	1m 59s
test (windows-latest, 2.6)	1m 49s
test (windows-latest, 3.3)	1m 7s
test (windows-latest, 3.2)	1m 9s
test (windows-latest, 2.7)	1m 50s
test (windows-latest, 3.0)	1m 1s
test (windows-latest, head)	1m 19s
test (windows-latest, 3.4)	1m 10s
test (windows-latest, 2.4)	1m 42s
test (ubuntu-latest, jruby)	1m 59s
test (ubuntu-latest, 2.3)	48s
	26m 23s

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