test

Bump step-security/harden-runner from 2.19.3 to 2.19.4 #355

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (2.6 / macos-latest)	31s
build (2.7 / windows-latest)	1m 34s
build (2.5 / ubuntu-latest)	22s
build (3.1 / windows-latest)	52s
build (2.7 / macos-latest)	28s
build (2.6 / windows-latest)	1m 39s
build (3.0 / macos-latest)	16s
build (3.1 / ubuntu-latest)	11s
build (2.6 / ubuntu-latest)	27s
build (3.0 / windows-latest)	1m 12s
build (3.4 / ubuntu-latest)	16s
build (3.4 / windows-latest)	1m 3s
build (3.0 / ubuntu-latest)	15s
build (3.2 / windows-latest)	52s
build (3.1 / macos-latest)	13s
build (3.3 / macos-latest)	12s
build (3.2 / macos-latest)	11s
build (3.3 / windows-latest)	1m 20s
build (2.7 / ubuntu-latest)	24s
build (2.5 / windows-latest)	1m 37s
build (3.4 / macos-latest)	18s
build (3.3 / ubuntu-latest)	14s
build (4.0 / macos-latest)	12s
build (head / ubuntu-latest)	11s
build (4.0 / ubuntu-latest)	12s
build (3.2 / ubuntu-latest)	11s
build (jruby / ubuntu-latest)	50s
build (4.0 / windows-latest)	52s
build (head / macos-latest)	14s
build (truffleruby / ubuntu-latest)	27s
build (mingw / windows-latest)	49s
build (jruby-head / ubuntu-latest)	54s
build (truffleruby / macos-latest)	24s
build (mswin / windows-latest)	1m 12s
	20m 58s

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