gh-132470: Prevent crash in ctypes.CField when `byte_size` is incorrect (#132475)

gh-132470: Prevent crash in ctypes.CField when `byte_size` is incorrect (#132475)

Fix: Prevent crash in ctypes.CField when byte_size does not match type size  (gh-132470)

When creating a ctypes.CField with an incorrect byte_size (e.g., using `byte_size=2` for `ctypes.c_byte`), the code would previously abort due to the failed assertion `byte_size == info->size`.

This commit replaces the assertion with a proper error handling mechanism that raises a `ValueError` when `byte_size` does not match the expected type size. This prevents the crash and provides a more informative error message to the us

Co-authored-by: sobolevn <mail@sobolevn.me>