Merge pull request #85 from nobu/gcc-14 #191

Job	Run time
ruby-versions / Generate Ruby versions	4s
build (2.5 / ubuntu-latest)	25s
build (2.5 / windows-latest)	2m 2s
build (2.6 / ubuntu-latest)	25s
build (2.6 / macos-latest)	34s
build (2.6 / windows-latest)	3m 24s
build (2.7 / ubuntu-latest)	26s
build (2.7 / macos-latest)	27s
build (2.7 / windows-latest)	3m 12s
build (3.0 / ubuntu-latest)	11s
build (3.0 / macos-latest)	22s
build (3.0 / windows-latest)	1m 6s
build (3.1 / ubuntu-latest)	18s
build (3.1 / macos-latest)	16s
build (3.1 / windows-latest)	1m 8s
build (3.2 / ubuntu-latest)	11s
build (3.2 / macos-latest)	21s
build (3.2 / windows-latest)	1m 5s
build (3.3 / ubuntu-latest)	10s
build (3.3 / macos-latest)	16s
build (3.3 / windows-latest)	1m 33s
build (head / ubuntu-latest)	11s
build (head / macos-latest)	16s
build (truffleruby-head / ubuntu-latest)	35s
build (truffleruby-head / macos-latest)	34s
build (mswin / windows-latest)	1m 10s
build (mingw / windows-latest)	1m 34s
	22m 16s

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