Update Helm release grafana/grafana to v12.3.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
grafana/grafana (source)	ClusterProfile	patch	12.3.0 → 12.3.1

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Release Notes

grafana-community/helm-charts (grafana/grafana)

v12.3.1

Compare Source

The leading tool for querying and visualizing time series and metrics.

What's Changed

• [grafana] Update quay.io/kiwigrid/k8s-sidecar Docker tag to v2.7.3 by @​renovate[bot] in #​477

Full Changelog: grafana-community/helm-charts@loki-13.6.2...grafana-12.3.1

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