fix(helm): update chart grafana to 8.3.2

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
grafana (source)	patch	8.3.1 -> 8.3.2

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Release Notes

grafana/helm-charts (grafana)

### [`v8.3.2`](https://togithub.com/grafana/helm-charts/releases/tag/grafana-8.3.2) [Compare Source](https://togithub.com/grafana/helm-charts/compare/grafana-8.3.1...grafana-8.3.2) The leading tool for querying and visualizing time series and metrics. #### What's Changed - \[grafana] Clarify documentation for serviceMonitor.enabled by [@​oliviermichaelis](https://togithub.com/oliviermichaelis) in [https://github.com/grafana/helm-charts/pull/3209](https://togithub.com/grafana/helm-charts/pull/3209) #### New Contributors - [@​oliviermichaelis](https://togithub.com/oliviermichaelis) made their first contribution in [https://github.com/grafana/helm-charts/pull/3209](https://togithub.com/grafana/helm-charts/pull/3209) **Full Changelog**: https://github.com/grafana/helm-charts/compare/helm-loki-6.6.5...grafana-8.3.2

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