automake: add missing git-version.h dependency

compositor/main.c depends on the header, while the dependency isn't
specified. Thus depending on the order of how things are build we could
get a build failure.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
1 file changed