Update Helm release grafana to v8.3.1

[prankstr]

This PR contains the following updates:

Package	Type	Update	Change
grafana (source)	HelmChart	minor	8.2.2 -> 8.3.1

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Release Notes

grafana/helm-charts (grafana)

### [`v8.3.1`](https://togithub.com/grafana/helm-charts/releases/tag/grafana-8.3.1) [Compare Source](https://togithub.com/grafana/helm-charts/compare/grafana-8.3.0...grafana-8.3.1) The leading tool for querying and visualizing time series and metrics. #### What's Changed - \[grafana] Add support for envValueFrom in datasources container and fix typo in dashboards container config by [@​rgaduput](https://togithub.com/rgaduput) in [https://github.com/grafana/helm-charts/pull/3187](https://togithub.com/grafana/helm-charts/pull/3187) #### New Contributors - [@​rgaduput](https://togithub.com/rgaduput) made their first contribution in [https://github.com/grafana/helm-charts/pull/3187](https://togithub.com/grafana/helm-charts/pull/3187) **Full Changelog**: https://github.com/grafana/helm-charts/compare/grafana-8.3.0...grafana-8.3.1 ### [`v8.3.0`](https://togithub.com/grafana/helm-charts/releases/tag/grafana-8.3.0) [Compare Source](https://togithub.com/grafana/helm-charts/compare/grafana-8.2.2...grafana-8.3.0) The leading tool for querying and visualizing time series and metrics. #### What's Changed - \[grafana] Add support for extra volumes for Grafana Image Renderer by [@​bradleypettit](https://togithub.com/bradleypettit) in [https://github.com/grafana/helm-charts/pull/3178](https://togithub.com/grafana/helm-charts/pull/3178) #### New Contributors - [@​bradleypettit](https://togithub.com/bradleypettit) made their first contribution in [https://github.com/grafana/helm-charts/pull/3178](https://togithub.com/grafana/helm-charts/pull/3178) **Full Changelog**: https://github.com/grafana/helm-charts/compare/tempo-distributed-1.13.2...grafana-8.3.0

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