Portable Ruby cleanup/fixes #28064

Job	Run time
syntax	1m 16s
syntax	1m 16s
tap syntax	8m 4s
tap syntax	8m 4s
cask audit	2m 41s
cask audit	2m 41s
docker	4m 31s
docker	4m 31s
formula audit	6m 20s
formula audit	6m 20s
test default formula (Ubuntu 22.04)	4m 40s
test default formula (Ubuntu 22.04)	4m 40s
tests (online)	11m 41s
tests (online)	8m 52s
test default formula (Ubuntu 20.04)	8m 27s
test default formula (Ubuntu 20.04)	8m 27s
update-test (Ubuntu 22.04)	38s
update-test (Ubuntu 22.04)	38s
test default formula (macOS 13 x86_64)	2m 48s
test default formula (macOS 13 x86_64)	2m 48s
vendored gems	38s
vendored gems	38s
tests (generic OS)	5m 43s
tests (generic OS)	5m 43s
update-test (macOS 13)	43s
update-test (macOS 13)	43s
test default formula (macOS 14 arm64)	1m 11s
test default formula (macOS 14 arm64)	1m 11s
tests (Ubuntu 22.04)	6m 20s
tests (Ubuntu 22.04)	6m 20s
tests (Ubuntu 20.04)	7m 2s
tests (Ubuntu 20.04)	7m 2s
tests (macOS 13 x86_64)	7m 43s
tests (macOS 13 x86_64)	7m 43s
tests (macOS 14 arm64)	5m 4s
tests (macOS 14 arm64)	5m 4s
	2h 48m 11s

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