JIT

[3.13] GH-124398: Pin LLVM to 18.1.0 for Windows JIT CI (GH-124399) (… #2637

Job	Run time
Interpreter (Debug)	7m 42s
i686-pc-windows-msvc/msvc (Debug)	18m 41s
i686-pc-windows-msvc/msvc (Release)	20m 44s
Free-Threaded (Debug)	13m 22s
x86_64-pc-windows-msvc/msvc (Debug)	16m 36s
x86_64-pc-windows-msvc/msvc (Release)	22m 10s
aarch64-pc-windows-msvc/msvc (Debug)	6m 12s
aarch64-pc-windows-msvc/msvc (Release)	6m 29s
x86_64-apple-darwin/clang (Debug)	15m 53s
x86_64-apple-darwin/clang (Release)	17m 15s
aarch64-apple-darwin/clang (Debug)	1h 30m 15s
aarch64-apple-darwin/clang (Release)	13m 37s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 38s
x86_64-unknown-linux-gnu/gcc (Release)	18m 49s
x86_64-unknown-linux-gnu/clang (Debug)	8m 2s
x86_64-unknown-linux-gnu/clang (Release)	14m 28s
aarch64-unknown-linux-gnu/gcc (Debug)	1h 30m 13s
aarch64-unknown-linux-gnu/gcc (Release)	1h 30m 15s
aarch64-unknown-linux-gnu/clang (Debug)	1h 30m 14s
aarch64-unknown-linux-gnu/clang (Release)	1h 10m 22s
	10h 39m 57s

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