helm: wrong defaults for beyla network monitoring

[gouthamve]

https://github.com/grafana/beyla/blob/main/charts/beyla/values.yaml#L210-L215

This produces the following metrics:

These metrics are not super helpful. We should either disable network monitoring by default or change the default attributes to be more useful.

[marevers]

@gouthamve network monitoring should actually be disabled by default already, owing to this line:

beyla/charts/beyla/values.yaml

Line 251 in 7664338

preset: application

It's only enabled if this is changed to preset: network.

We could add k8s.dst.owner.name and k8s.src.owner.name to the list, which would break this down further to the individual applications. That would be more helpful probably.