✨ Add iscsi stringprep profile #1927

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (3.1 / ubuntu-latest)	47s
build (3.1 / macos-latest)	48s
build (3.1 / windows-latest)	2m 38s
build (3.2 / ubuntu-latest)	46s
build (3.2 / macos-latest)	40s
build (3.2 / windows-latest)	1m 58s
build (3.3 / ubuntu-latest)	43s
build (3.3 / macos-latest)	42s
build (3.3 / windows-latest)	1m 55s
build (3.4 / ubuntu-latest)	42s
build (3.4 / macos-latest)	29s
build (3.4 / windows-latest)	3m 38s
build (head / ubuntu-latest)	43s
build (head / macos-latest)	40s
build (head / windows-latest)	2m 13s
	19m 25s

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