Fix compiler warnings in remote debugging (#141060)
Example of fixed warnings on 32-bit Windows:
Python\remote_debugging.c(24,53): warning C4244: 'function':
conversion from 'uint64_t' to 'uintptr_t', possible loss of data
Modules\_remote_debugging_module.c(789,44): warning C4244:
'function': conversion from 'uint64_t' to 'size_t', possible loss
of data
(cherry picked from commit f458ac01ba)
gh-134876: Add fallback for when process_vm_readv fails with ENOSYS (GH-134878)
(cherry picked from commit ac9c3431cc)
Co-authored-by: Daniel Golding <goldingd89@gmail.com>
