Add the option to use labels in templating a finding's title/description

[asafhm]

Is your feature request related to a problem? Currently when creating a new finding you can only use name/namespace/kind/node in your templating. If additional information lies in the labels/annotations you can't present it...

Describe the solution you'd like Add the capability to use the labels/annotations in the template.

[RobertSzefler]

https://github.com/robusta-dev/robusta/pull/1492