notifications and alerting when the user operator managed certificates are close to expiry

certs can be renewed using below commands

Renewing CA certificates manually # cluster CA oc annotate secret ${KAFKA_CLUSTER}-cluster-ca-cert strimzi.io/force-renew=true # clients CA oc annotate secret ${KAFKA_CLUSTER}-clients-ca-cert strimzi.io/force-renew=true

But customer is looking notifications and alerting when the user operator managed certificates are close to expiry