Notification and webhooks of git notes push events

Problem to solve

It would be great to receive email notification or use a webhook to trigger and event when a new git notes has been pushed. Currently the push events are only sent for commits push.

Intended users

Developers and DevOps.

Further details

We are saving metadata in the git notes (for example versions of software modules that will be used for publishing/deployment purposes) and we would like to know when those version change.

Proposal

Just add another webhook trigger checkbox with "Notes push events" and send notifications also when notes push happens.

Permissions and Security

Same as normal push events.