Send correct UMB messages for container builds

Hello,

Please send correct messages for containers:

Example:

https://datagrepper.engineering.redhat.com/id?id=ID:fuse-7x-jenkins-csb-fuse-qe-45369-1666112942925-14265:1:1:1:1&is_raw=true&size=extra-large

These messages has wrong 

"type": "brew-build"

For example you can take messages from CVP:

https://datagrepper.engineering.redhat.com/raw?topic=/topic/VirtualTopic.eng.ci.cvp.redhat-container-image.test.complete&delta=86400

Schema for container images is:

https://pagure.io/fedora-ci/messages/blob/master/f/schemas/redhat-container-image.test.complete.yaml 

Related ticket: https://issues.redhat.com/browse/CVP-287

Right now FUSE violates schema