git.rc: include winuser.h #65

Job	Run time
config	4s
win+VS build	0s
linux-musl (alpine)	6m 31s
pedantic (fedora)	1m 54s
linux32 (daald/ubuntu32:xenial)	7m 20s
documentation	3m 29s
linux-asan-ubsan (ubuntu-latest)	28m 3s
linux-gcc (ubuntu-20.04)	7m 13s
linux-gcc-default (ubuntu-latest)	9m 35s
linux-leaks (ubuntu-latest)	10m 51s
linux-sha256 (ubuntu-latest)	9m 26s
linux-TEST-vars (ubuntu-20.04)	7m 23s
osx-clang (macos-13)	25m 8s
osx-gcc (macos-13)	33m 0s
sparse	2m 52s
win build	7m 16s
static-analysis	3m 15s
win+VS test	0s
win test (3)	8m 16s
win test (1)	3m 34s
win test (0)	8m 54s
win test (2)	3m 52s
win test (4)	6m 36s
win test (5)	4m 41s
win test (6)	6m 52s
win test (7)	5m 55s
win test (9)	4m 41s
win test (8)	5m 11s
	3h 41m 52s

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