chore(deps): update cinder digest to 8df3c5c (#947)

diff --git a/images/cinder/Earthfile b/images/cinder/Earthfile
index df84e7a..77791a0 100644
--- a/images/cinder/Earthfile
+++ b/images/cinder/Earthfile
@@ -2,7 +2,7 @@
 
 ARG --global PROJECT=cinder
 ARG --global RELEASE=2023.2
-ARG --global PROJECT_REF=8d453fa7b6daf1c1b6105a71f7c660b9036541f3
+ARG --global PROJECT_REF=8df3c5cf43fb00efcf349a00ecde4df995fa1b93
 
 build:
   FROM ../openstack-service+builder --RELEASE=${RELEASE}