set grafana role based on vo subgroup

Currently, grafana editors can not share their dashboards publicly. This is only allowed as an admin user of a grafana org.

We could reconfigure the worker-grafana-user-orgs dispatcher action to set the user role based on the VO sub-groups. If the user is member of <Group>:ufz-sms-admin then we could assign Role Admin, otherwise (if user is member of <Group> and/or <Group>:ufz-sms-member) we could assign Role Editor