Replace ceilometer-dbsync by ceilometer-upgrade

Replace ceilometer-dbsync by ceilometer-upgrade

https://review.openstack.org/#/c/388688/ has removed ceilometer-dbsync so
ceilometer-upgrade must be used instead.

Additionally, ceilometer-dbsync enabled option --skip-gnocchi-resource-types
and ceilometer-upgrade doesn't, so i'm setting it by default to ensure backwards compatibility.

Note this is based on the corresponding fix to puppet-ceilometer ref

https://review.openstack.org/#/c/396570

Change-Id: Ic0a15c75d1cd3e3f70eeafd9ba09d50c58cc1293
Closes-Bug: #1641076