test

Bump step-security/harden-runner from 2.18.0 to 2.19.0 #354

Job	Run time
ruby-versions / Generate Ruby versions	4s
build (2.7 / macos-latest)	35s
build (3.0 / macos-latest)	15s
build (2.6 / macos-latest)	40s
build (2.6 / ubuntu-latest)	29s
build (3.1 / ubuntu-latest)	12s
build (2.6 / windows-latest)	1m 29s
build (3.0 / windows-latest)	1m 13s
build (2.7 / ubuntu-latest)	28s
build (2.7 / windows-latest)	1m 38s
build (3.0 / ubuntu-latest)	10s
build (3.1 / macos-latest)	13s
build (4.0 / macos-latest)	14s
build (3.3 / macos-latest)	15s
build (3.2 / windows-latest)	1m 19s
build (3.2 / ubuntu-latest)	14s
build (4.0 / ubuntu-latest)	12s
build (3.4 / ubuntu-latest)	12s
build (3.1 / windows-latest)	1m 5s
build (truffleruby / macos-latest)	38s
build (3.4 / macos-latest)	14s
build (head / macos-latest)	15s
build (head / windows-latest)	1m 0s
build (4.0 / windows-latest)	52s
build (3.3 / windows-latest)	1m 7s
build (3.3 / ubuntu-latest)	12s
build (truffleruby / ubuntu-latest)	30s
build (3.4 / windows-latest)	47s
build (head / ubuntu-latest)	11s
build (3.2 / macos-latest)	18s
	17m 1s

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