fuel plugin: Pick updated libudev packages.

Package versions of libudev-dev_204 packages were bumped from
5ubuntu20.18 to 5ubuntu20.19.

Change-Id: Ie43635c1ab3180a307475e0b47b082fe1cad6ae1
Signed-off-by: Billy O'Mahony <billy.o.mahony@intel.com>
Reviewed-by: Jonas Bjurel <jonas.bjurel@ericsson.com>
Reviewed-by: Mark D. Gray <mark.d.gray@intel.com>
Reviewed-by: Tom Herbert <therbert@redhat.com>
Reviewed-by: Michal Skalski <mskalski@mirantis.com>
(cherry picked from commit a1f15bb1c833079d49affab36bb4bb20ca73dafd)