chore(deps): update nova digest to 226f3e9 (#886)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
diff --git a/images/nova/Earthfile b/images/nova/Earthfile
index 420b524..3d86b60 100644
--- a/images/nova/Earthfile
+++ b/images/nova/Earthfile
@@ -3,7 +3,7 @@
 platform-image:
   ARG PROJECT=nova
   ARG RELEASE=zed
-  ARG REF=3ada047b2729ef7e0875f267ee330bcc33174758
+  ARG REF=226f3e95c1cdadd1845c7adee55f5c5f29f3a7a8
   FROM ../openstack-service+image \
     --PROJECT ${PROJECT} \
     --RELEASE ${RELEASE} \