Description of problem:

Add some `Notifications` in repository, the event is  'Dockerfile Build Started' ,  notification method are webhook,  slack, email and UI notification. When the build start,  the webhook, email and UI Notification won't get the build start message.

Version-Release number of selected component (if applicable):

Quay 3.7.2
quay-operator-bundle-container-v3.7.2-2
Index image v4.10: registry-proxy.engineering.redhat.com/rh-osbs/iib:249094 

How reproducible:

always

Steps to Reproduce:
1.  set up a repository which is configured to build image from dockerfile
2.  Create some notifications, use email,  slack, webhook, UI notification as recipient

3 trigger build

4 , check the email, webhook, and UI Notification to see if they get the build notification when build start

Actual results:

Do not get the build  start notification by email, webhook and UI Notification

Expected results:

Email, slack, webhook and UI  Notification can get build start message

Additional info:

This issue is similar with issue  The build successfully completed' does not send out notification by email, slack and UI notification