fix(helm): update chart grafana to 8.0.2

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
grafana (source)	patch	8.0.1 -> 8.0.2

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Release Notes

grafana/helm-charts (grafana)

### [`v8.0.2`](https://togithub.com/grafana/helm-charts/releases/tag/grafana-8.0.2) [Compare Source](https://togithub.com/grafana/helm-charts/compare/grafana-8.0.1...grafana-8.0.2) The leading tool for querying and visualizing time series and metrics. #### What's Changed - \[grafana] Adding configmap annotation by [@​jmiszczak83](https://togithub.com/jmiszczak83) in [https://github.com/grafana/helm-charts/pull/3064](https://togithub.com/grafana/helm-charts/pull/3064) #### New Contributors - [@​jmiszczak83](https://togithub.com/jmiszczak83) made their first contribution in [https://github.com/grafana/helm-charts/pull/3064](https://togithub.com/grafana/helm-charts/pull/3064) **Full Changelog**: https://github.com/grafana/helm-charts/compare/k8s-monitoring-1.0.13...grafana-8.0.2

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