[x] Unit, integration, and e2e (if applicable) tests updated
[x] Documentation added (or pr:no public docs PR label added if not required)
[x] Added the relevant release notes label (see labels prefixed w/ release:). These labels dictate how your PR will
show up in the autogenerated release notes.
What this PR does
service_name
label will be added to Grafana Alerting integration when it is created, if it wasn't added by user.service_name
dynamic label to all existing Grafana Alerting integrations.Which issue(s) this PR closes
Related to https://github.com/grafana/oncall-private/issues/2975
Checklist
pr:no public docs
PR label added if not required)release:
). These labels dictate how your PR will show up in the autogenerated release notes.