remove -o root and -g root options to install in Makefile

[pravi]

I'm making a debian package suitable to be uploaded to debian (and mobian) but get this error when building as a normal user,

install -D -o root -g root -m 644 system-wake-up.service ${DESTDIR}/lib/systemd/system/system-wake-up.service
install: cannot change ownership of 'debian/birdie-alarm-mobile/lib/systemd/system/system-wake-up.service': Operation not permitted

if install is called with sudo (as most projects recommend sudo make install) the owner and group is set to root and debhelper will set this ownership when building the debian package.

I have removed this by a patch https://salsa.debian.org/debian/birdie-alarm-mobile/-/blob/master/debian/patches/remove-root-chown.patch but would be nice if it is included in this repo.

[pravi]

$ sudo install -D -m 644 system-wake-up.service ${DESTDIR}/lib/systemd/system/system-wake-up.service
$ ls -l ${DESTDIR}/lib/systemd/system/system-wake-up.service
-rw-r--r-- 1 root root 75 Jan 13 15:39 debian/birdie-alarm-mobile/lib/systemd/system/system-wake-up.service