Deploy grafana

Prerequisites

complete the steps in self-host.md
create an access policy for the grafana cloud with following permissions Realms:
<org name> (all stacks) Scopes:
accesspolicies:read
accesspolicies:write
accesspolicies:delete
stacks:read
stacks:write
stacks:delete
orgs:read
stack-plugins:write
stack-plugins:delete
stack-plugins:read
fill it in gcloud secrets manager (grafana-api-key)