feat(helm)!: Update chart grafana ( 7.3.12 → 8.0.0 ) (#620)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [grafana](https://grafana.com)
([source](https://github.com/grafana/helm-charts)) | major | `7.3.12`
-> `8.0.0` |

---

### Release Notes

<details>
<summary>grafana/helm-charts (grafana)</summary>

###
[`v8.0.0`](https://github.com/grafana/helm-charts/releases/tag/grafana-8.0.0)

[Compare
Source](https://github.com/grafana/helm-charts/compare/grafana-7.3.12...grafana-8.0.0)

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

#### What's Changed

- \[grafana] Update Grafana to 11.0.0 by
[@&#8203;jkroepke](https://github.com/jkroepke) in
[https://github.com/grafana/helm-charts/pull/3139](https://github.com/grafana/helm-charts/pull/3139)

**Full Changelog**:
grafana/helm-charts@grafana-7.3.12...grafana-8.0.0

</details>

---

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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---

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kubernetes/main/apps/monitoring/grafana/app/helmrelease.yaml

@@ -13,7 +13,7 @@ spec:
         kind: HelmRepository
         name: grafana
         namespace: flux-system
-      version: 7.3.12
+      version: 8.0.0
   interval: 30m
   timeout: 20m
   values: