Possible performance improvement in list repeating

[thatbirdguythatuknownot]

Bug report

List repeating can be optimized a bit by using the same algorithm/method as _PyBytes_Repeat:

python_original -m timeit -s "l = [*range(100)]" "l * 100"
5000 loops, best of 5: 31.9 usec per loop

python_modified -m timeit -s "l = [*range(100)]" "l * 100"
5000 loops, best of 5: 25.9 usec per loop

Your environment

• CPython versions tested on: 3.11.0a7+
• Operating system and architecture: Windows 10 64-bit

[methane]

Duplicate of #91247