meson: fix incorrect libalpm version

LIB_VERSION is supposed to be something like 11.0.1, not simply
reiterate the project version. As a result, we ended up with this:

$ pacman -V
[...]
Pacman v5.1.0 - libalpm v5.1.0
[...]

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions