test

Bump step-security/harden-runner from 2.12.1 to 2.12.2 #718

Job	Run time
ruby-versions / Generate Ruby versions	5s
test (ubuntu-latest, 2.3)	42s
test (ubuntu-latest, 2.7)	46s
test (ubuntu-latest, jruby)	2m 2s
test (ubuntu-latest, jruby-head)	2m 3s
test (ubuntu-latest, 3.3)	17s
test (ubuntu-latest, 2.6)	46s
test (ubuntu-latest, 2.5)	46s
test (ubuntu-latest, 3.0)	21s
test (ubuntu-latest, 3.4)	16s
test (ubuntu-latest, truffleruby)	51s
test (windows-latest, 3.2)	1m 26s
test (windows-latest, 2.6)	1m 54s
test (windows-latest, 2.5)	1m 53s
test (windows-latest, 2.7)	1m 52s
test (windows-latest, 2.4)	1m 41s
test (windows-latest, 2.3)	1m 47s
test (windows-latest, head)	1m 2s
test (windows-latest, 3.0)	54s
test (windows-latest, 3.1)	1m 17s
test (windows-latest, 3.4)	58s
test (ubuntu-latest, 2.4)	40s
test (ubuntu-latest, 3.2)	17s
test (ubuntu-latest, head)	15s
test (windows-latest, 3.3)	51s
test (ubuntu-latest, 3.1)	17s
	25m 59s

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