Reconfigure the msys_build_deps.py build chain to link only to msvcrt.dll

This also introduces some updated library versions.

Since it has become impractical to build libraries with MinGW that link to
any VC runtime library other that msvcrt.dll, nothing is lost by trying to use
prebuilts linked to msvcrt.dll. If Pygame avoids passing open files to the
libraries or mixing memory management, then everything should be fine.