fix(helm): update chart grafana to 6.58.6

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana (source)	patch	6.58.4 -> 6.58.6

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Release Notes

grafana/helm-charts (grafana)

v6.58.6

Compare Source

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

What's Changed

• [grafana] add deleteDatasources reference by @​tamcore in https://github.com/grafana/helm-charts/pull/2537

Full Changelog: grafana/helm-charts@loki-distributed-0.70.5...grafana-6.58.6

v6.58.5

Compare Source

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

What's Changed

• [grafana] Adding missing mountPath for csi extraVolumeMount by @​jifwin in https://github.com/grafana/helm-charts/pull/2511

New Contributors

• @​jifwin made their first contribution in https://github.com/grafana/helm-charts/pull/2511

Full Changelog: grafana/helm-charts@loki-distributed-0.70.1...grafana-6.58.5

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