build-mingw-w64: Bump to the latest version as of Oct 3rd

In addition to the usual sets of assorted updates, this brings
some more additions to the main d3d12 header, and adds the
d3d12video.h header.

build-mingw-w64.sh

@@ -18,7 +18,7 @@ set -e
 
 : ${DEFAULT_WIN32_WINNT:=0x601}
 : ${DEFAULT_MSVCRT:=ucrt}
-: ${MINGW_W64_VERSION:=602758b2042bf26978f1a48fd90139b276f18384}
+: ${MINGW_W64_VERSION:=057380b929a1ed4a924eeea0038821c65266d913}
 
 CFGUARD_FLAGS="--enable-cfguard"