Only attempt to upgrade ACME configuration files if deployed
This can happen on upgrades from older deployments that lack
an ACME installation and don't meet the minimum requirements
to deploy one automatically.
Also don't consider missing ACME schema a total failure, just
log and skip it.
https://pagure.io/freeipa/issue/8832
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>