Upgrade Ruby to 3.4.3 #14204

Job	Run time
lint_ruby	1m 0s
lint_node	49s
build_node (ubuntu-latest)	2m 48s
Ruby 3.1 on ubuntu-latest	12m 1s
build_node (macos-latest)	2m 33s
Ruby 3.2 on ubuntu-latest	11m 22s
build_node (windows-latest)	33s
Verify Jekyll website builds	23s
spelling	12s
Ruby 3.3 on ubuntu-latest	10m 53s
Ruby 3.4 on ubuntu-latest	11m 22s
Ruby 3.1 on macos-latest	7m 45s
Ruby 3.2 on macos-latest	6m 35s
Ruby 3.3 on macos-latest	6m 36s
Ruby 3.4 on macos-latest	6m 42s
Ruby 3.1 on windows-latest	24m 28s
Ruby 3.2 on windows-latest	26m 21s
Ruby 3.3 on windows-latest	26m 24s
Ruby 3.4 on windows-latest	25m 25s
	3h 4m 12s

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