Update catalog base image to 4.16

Author: ingvagabund

v4.16/catalog.Dockerfile

@@ -1,7 +1,7 @@
 # The base image is expected to contain
 # /bin/opm (with a serve subcommand) and /bin/grpc_health_probe
 # Bump to v4.18 tag once available
-FROM registry.redhat.io/openshift4/ose-operator-registry-rhel9:v4.17
+FROM registry.redhat.io/openshift4/ose-operator-registry-rhel9:v4.16
 
 # Configure the entrypoint and command
 ENTRYPOINT ["/bin/opm"]