JIT

GH-134584: Remove redundant refcount for `BINARY_OP_SUBSCR_STR_INT` #4662

Job	Run time
Interpreter (Debug)	10m 44s
JIT without optimizations (Debug) (21)	1m 29s
JIT with tail calling interpreter (21)	1m 28s
Free-Threaded (Debug) (21)	1m 30s
x86_64-pc-windows-msvc/msvc (Debug)	1m 27s
aarch64-pc-windows-msvc/msvc (Release)	1m 25s
aarch64-pc-windows-msvc/msvc (Debug)	1m 19s
i686-pc-windows-msvc/msvc (Release)	1m 27s
i686-pc-windows-msvc/msvc (Debug)	1m 26s
aarch64-unknown-linux-gnu/gcc (Debug)	1m 23s
aarch64-apple-darwin/clang (Debug)	1m 30s
x86_64-unknown-linux-gnu/gcc (Debug)	1m 30s
x86_64-apple-darwin/clang (Release)	1m 29s
x86_64-unknown-linux-gnu/gcc (Release)	1m 28s
x86_64-apple-darwin/clang (Debug)	1m 32s
aarch64-unknown-linux-gnu/gcc (Release)	1m 23s
x86_64-pc-windows-msvc/msvc (Release)	1m 26s
aarch64-apple-darwin/clang (Release)	1m 29s
	35m 25s

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