Thanos, Prometheus and Golang version used: 0.35.1

Object Storage Provider: S3 from NetApp

What happened:

Grafana shows warning about using Angular type of charts. They can be automatically migrated from GUI, but this should be also done in code, in this repository.

What you expected to happen:

Grafana 11+ does not complain about using "deprecated" Angular charts anymore. For that to happen the user can already now trigger dashboard migration, which will convert charts to the non-deprecated style. However, in this repository it should be changed as well.

How to reproduce it (as minimally and precisely as possible):

• start grafana 11.0+
• import https://github.com/thanos-io/thanos/blob/main/mixin/dashboards/receive.libsonnet from https://github.com/thanos-io/thanos/blob/main/examples/dashboards/receive.json. BTW. sidecar https://github.com/thanos-io/thanos/blob/main/examples/dashboards/sidecar.json is also impacted.
• a grafana dashboard warning is shown:

LINK: https://grafana.com/docs/grafana/latest/developers/angular_deprecation/

See a similar issue here: kubernetes-monitoring/kubernetes-mixin#898