Catch closed database connections in get_osm_database_last_update
Catch closed database connections in get_osm_database_last_update

Signed-off-by: Maxime Petazzoni <76f7aeeb2d6ed04ef2b101cc81e4baac9b89c3cf@bulix.org>

maposmatic/maposmatic,hholzgra/maposmatic,hholzgra/maposmatic,maposmatic/maposmatic,maposmatic/maposmatic,hholzgra/maposmatic,hholzgra/maposmatic,hholzgra/maposmatic,maposmatic/maposmatic