JIT

GH-136895: Update JIT builds to use LLVM 21 #43

Job	Run time
x86_64-unknown-linux-gnu/gcc (Debug)	11m 39s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 5s
aarch64-apple-darwin/clang (Release)	13m 38s
x86_64-apple-darwin/clang (Debug)	21m 51s
x86_64-unknown-linux-gnu/gcc (Release)	7m 27s
JIT with tail calling interpreter	3m 0s
JIT without optimizations (Debug)	2m 22s
Interpreter (Debug)	10m 39s
aarch64-apple-darwin/clang (Debug)	16m 42s
aarch64-unknown-linux-gnu/gcc (Release)	7m 16s
x86_64-apple-darwin/clang (Release)	24m 5s
x86_64-pc-windows-msvc/msvc (Release)	4m 55s
i686-pc-windows-msvc/msvc (Debug)	5m 7s
i686-pc-windows-msvc/msvc (Release)	5m 30s
x86_64-pc-windows-msvc/msvc (Debug)	6m 17s
aarch64-pc-windows-msvc/msvc (Debug)	7m 11s
aarch64-pc-windows-msvc/msvc (Release)	7m 55s
	2h 43m 39s

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