This command does not work.
First of all you miss a step like
cd amq-broker-operator-7.6.0-ocp-install-examples

but even with this step the path above is incorrect, it rather seems to be
deploy/catalog_resources/amq-broker-operatorsource.yaml

Reported by: rhn-support-tmielke

https://access.redhat.com/documentation/en-us/red_hat_amq/7.6/html/deploying_amq_broker_on_openshift/deploying-broker-on-ocp-using-operator_broker-ocp#annotations:2ef11f51-3ecc-4cdc-8c18-6c3648a54b45