Add Ruby 3.4 as a possible Ruby version (#474) #1770

Job	Run time
📥 Fetch CI data	1s
🔘 Static (3.2.2, ubuntu-latest, stable)	4m 45s
🧪 Test (2.7, ubuntu-latest, 1.65)	5m 2s
🧪 Test (2.7, ubuntu-latest, stable)	5m 7s
🧪 Test (2.7, macos-latest, stable)	4m 31s
🧪 Test (2.7, windows-2022, stable)	10m 8s
🧪 Test (3.0, ubuntu-latest, 1.65)	4m 36s
🧪 Test (3.0, ubuntu-latest, stable)	2m 23s
🧪 Test (3.0, macos-latest, stable)	4m 7s
🧪 Test (3.0, windows-2022, stable)	15m 57s
🧪 Test (3.1, ubuntu-latest, 1.65)	4m 51s
🧪 Test (3.1, ubuntu-latest, stable)	2m 30s
🧪 Test (3.1, windows-2022, stable)	9m 36s
🧪 Test (3.2, ubuntu-latest, 1.65)	4m 31s
🧪 Test (3.2, ubuntu-latest, stable)	2m 26s
🧪 Test (3.2, macos-latest, stable)	4m 21s
🧪 Test (3.2, windows-2022, stable)	14m 18s
🧪 Test (3.3, ubuntu-latest, 1.65)	4m 32s
🧪 Test (3.3, ubuntu-latest, stable)	2m 45s
🧪 Test (3.3, macos-latest, stable)	4m 7s
🧪 Test (3.3, windows-2022, stable)	9m 30s
🧪 Test (3.4, ubuntu-latest, 1.65)	4m 40s
🧪 Test (3.4, ubuntu-latest, stable)	2m 37s
🧪 Test (3.4, macos-latest, stable)	4m 3s
🧪 Test (truffleruby, ubuntu-latest, stable)	4m 44s
🧪 Test (truffleruby, macos-latest, stable)	4m 2s
🧪 Test (mswin, windows-2022, stable-x86_64-pc-windows-msvc)	10m 10s
	2h 30m 20s

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