JIT

gh-85792: Update shebang to python3 #2904

Job	Run time
Interpreter (Debug)	8m 20s
Free-Threaded (Debug) (19)	1h 20m 37s
i686-pc-windows-msvc/msvc (Debug)	18m 48s
i686-pc-windows-msvc/msvc (Release)	10m 31s
x86_64-pc-windows-msvc/msvc (Debug)	18m 38s
x86_64-pc-windows-msvc/msvc (Release)	13m 17s
aarch64-pc-windows-msvc/msvc (Debug)	4m 21s
aarch64-pc-windows-msvc/msvc (Release)	6m 32s
x86_64-apple-darwin/clang (Debug)	10m 4s
x86_64-apple-darwin/clang (Release)	10m 55s
aarch64-apple-darwin/clang (Debug)	1h 22m 10s
aarch64-apple-darwin/clang (Release)	12m 41s
x86_64-unknown-linux-gnu/gcc (Debug)	1h 18m 39s
x86_64-unknown-linux-gnu/gcc (Release)	5m 52s
aarch64-unknown-linux-gnu/gcc (Debug)	10m 27s
aarch64-unknown-linux-gnu/gcc (Release)	7m 32s
	6h 19m 24s

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