chore: In operator rhoai overlay, use digest for cronjob image declaration (#5241)

in operator rhoai overlay, use digest for cronjob image declaration

Signed-off-by: Tommy Hughes <tohughes@redhat.com>

Author: tchughesiv

infra/feast-operator/config/overlays/rhoai/params.env

@@ -1,3 +1,3 @@
 RELATED_IMAGE_FEAST_OPERATOR=quay.io/feastdev/feast-operator:0.48.0
 RELATED_IMAGE_FEATURE_SERVER=quay.io/feastdev/feature-server:0.48.0
-RELATED_IMAGE_CRON_JOB=registry.redhat.io/openshift4/ose-cli:v4.15
+RELATED_IMAGE_CRON_JOB=registry.redhat.io/openshift4/ose-cli@sha256:bc35a9fc663baf0d6493cc57e89e77a240a36c43cf38fb78d8e61d3b87cf5cc5