[bot:release-v1.15.x] Update v4.16 generate catalog

Author: openshift-pipelines-bot

.konflux/olm-catalog/index/v4.16/catalog-template.json

@@ -425,7 +425,7 @@
     {
       "schema": "olm.bundle",
       "name": "openshift-pipelines-operator-rh.v1.15.3",
-      "image": "quay.io/openshift-pipeline/pipelines-operator-bundle@sha256:ab95040a88401d189fe0bc11fa6b280020729832288bbcc2f4eac6d976593229"
+      "image": "quay.io/openshift-pipeline/pipelines-operator-bundle@sha256:998c9c2c2405a43020ed9ac44c12a35973c5919444352f1ed5a186a491d21622"
     }
   ]
 }