Add tree access to webhooks

[bjarnef]

Prerequisites

• I have added steps to test this contribution in the description below

Description

While working on #15147 I noticed webhooks tree just require permissions to logs.

But couldn't there be use-cases, where some users should have access to log viewer, but not allowed to access and manage webhooks?

[github-actions]

Hi there @bjarnef, thank you for this contribution! 👍

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[bjarnef]

@Zeegaan @bergmania I think we need this change as well?

[Zeegaan]

Yep, we didn't do this intentionally for rc1 (time crunch 😅) But had a task to implement this for rc2!
Thanks for this 🙏