gh-115999: Add free-threaded specialization for CONTAINS_OP #82

Job	Run time
Interpreter (Debug)	6m 57s
Free-Threaded (Debug) (19)	11m 7s
i686-pc-windows-msvc/msvc (Debug)	18m 9s
i686-pc-windows-msvc/msvc (Release)	24m 4s
x86_64-pc-windows-msvc/msvc (Debug)	17m 20s
x86_64-pc-windows-msvc/msvc (Release)	21m 13s
aarch64-pc-windows-msvc/msvc (Debug)	4m 13s
aarch64-pc-windows-msvc/msvc (Release)	5m 30s
x86_64-apple-darwin/clang (Debug)	17m 42s
x86_64-apple-darwin/clang (Release)	18m 7s
aarch64-apple-darwin/clang (Debug)	3m 20s
aarch64-apple-darwin/clang (Release)	3m 15s
x86_64-unknown-linux-gnu/gcc (Debug)	7m 53s
x86_64-unknown-linux-gnu/gcc (Release)	17m 42s
x86_64-unknown-linux-gnu/clang (Debug)	8m 3s
x86_64-unknown-linux-gnu/clang (Release)	13m 27s
aarch64-unknown-linux-gnu/gcc (Debug)	1h 14m 39s
aarch64-unknown-linux-gnu/gcc (Release)	37m 18s
aarch64-unknown-linux-gnu/clang (Debug)	1h 7m 57s
aarch64-unknown-linux-gnu/clang (Release)	38m 32s
	6h 56m 28s

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