Fix CI variable names (#504) #1869

Job	Run time
🔘 Static (3.2.2, ubuntu-latest, stable)	2m 10s
📥 Fetch CI data	3s
🧪 Test (2.7, ubuntu-latest, 1.65)	5m 40s
🧪 Test (2.7, ubuntu-latest, stable)	2m 52s
🧪 Test (2.7, macos-latest, stable)	2m 20s
🧪 Test (2.7, windows-2022, stable)	10m 22s
🧪 Test (3.0, ubuntu-latest, 1.65)	5m 6s
🧪 Test (3.0, ubuntu-latest, stable)	2m 44s
🧪 Test (3.0, macos-latest, stable)	2m 27s
🧪 Test (3.0, windows-2022, stable)	7m 34s
🧪 Test (3.1, ubuntu-latest, 1.65)	5m 17s
🧪 Test (3.1, ubuntu-latest, stable)	2m 41s
🧪 Test (3.1, windows-2022, stable)	7m 39s
🧪 Test (3.2, ubuntu-latest, 1.65)	5m 35s
🧪 Test (3.2, ubuntu-latest, stable)	2m 49s
🧪 Test (3.2, macos-latest, stable)	2m 28s
🧪 Test (3.2, windows-2022, stable)	7m 44s
🧪 Test (3.3, ubuntu-latest, 1.65)	5m 21s
🧪 Test (3.3, ubuntu-latest, stable)	2m 49s
🧪 Test (3.3, macos-latest, stable)	2m 12s
🧪 Test (3.3, windows-2022, stable)	7m 17s
🧪 Test (3.4, ubuntu-latest, 1.65)	5m 8s
🧪 Test (3.4, ubuntu-latest, stable)	2m 57s
🧪 Test (3.4, macos-latest, stable)	2m 16s
🧪 Test (truffleruby, ubuntu-latest, stable)	2m 40s
🧪 Test (truffleruby, macos-latest, stable)	2m 7s
🧪 Test (mswin, windows-2022, stable-x86_64-pc-windows-msvc)	7m 31s
	1h 55m 49s

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