emulators/wine-devel: Update to Wine 6.13

This includes the following changes:
 - Proper scrollbar theming.
 - More work towards WinSock PE conversion.
 - Preparation work for the GDI syscall interface.
 - Some progress on the IPHLPAPI PE conversion.
 - Various bug fixes.

My patch from files/patch-nsiproxy.sys has been included upstream,
alas new breakage has been introduced in dlls/nsiproxy.sys, so
"refresh" that with another patch.

The STAGING option now patches again; no longer mark it as broken.