Changes

src/hlr: reopen DB after changing schema version

Close and reopen the DB after changing the version to so it gets written
to disk. Otherwise it may be that the DB does not get closed, and when
sqlite restores the DB the version can be 0 again, leading to errors
when trying to re-apply the schema upgrades

Related: SYS#7394
Change-Id: I5943a1cb3447c038c6e7972f68f9656b73a9248b