JIT

Fix ensurepip tests to match new --executable argument behavior #24

Job	Run time
Interpreter (Debug)	9m 43s
Free-Threaded (Debug) (19)	17m 28s
JIT without optimizations (Debug) (19)	11m 38s
i686-pc-windows-msvc/msvc (Release)	13m 48s
x86_64-apple-darwin/clang (Debug)	27m 33s
x86_64-pc-windows-msvc/msvc (Debug)	21m 14s
aarch64-apple-darwin/clang (Release)	10m 58s
aarch64-pc-windows-msvc/msvc (Release)	16m 27s
x86_64-unknown-linux-gnu/gcc (Debug)	13m 14s
aarch64-apple-darwin/clang (Debug)	12m 22s
x86_64-apple-darwin/clang (Release)	18m 4s
i686-pc-windows-msvc/msvc (Debug)	23m 19s
aarch64-pc-windows-msvc/msvc (Debug)	25m 22s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 37s
x86_64-pc-windows-msvc/msvc (Release)	16m 12s
aarch64-unknown-linux-gnu/gcc (Release)	5m 54s
x86_64-unknown-linux-gnu/gcc (Release)	8m 44s
	4h 19m 37s

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