feat(helm)!: Update chart grafana ( 7.3.11 → 8.0.0 ) (#3779)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [grafana](https://grafana.com)
([source](https://togithub.com/grafana/helm-charts)) | major | `7.3.11`
-> `8.0.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

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

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

[Compare
Source](https://togithub.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://togithub.com/jkroepke) in
[https://github.com/grafana/helm-charts/pull/3139](https://togithub.com/grafana/helm-charts/pull/3139)

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

###
[`v7.3.12`](https://togithub.com/grafana/helm-charts/releases/tag/grafana-7.3.12)

[Compare
Source](https://togithub.com/grafana/helm-charts/compare/grafana-7.3.11...grafana-7.3.12)

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

#### What's Changed

- \[grafana] Update app version to v10.4.3 by
[@&#8203;xvilo](https://togithub.com/xvilo) in
[https://github.com/grafana/helm-charts/pull/3136](https://togithub.com/grafana/helm-charts/pull/3136)

#### New Contributors

- [@&#8203;xvilo](https://togithub.com/xvilo) made their first
contribution in
[https://github.com/grafana/helm-charts/pull/3136](https://togithub.com/grafana/helm-charts/pull/3136)

**Full Changelog**:
grafana/helm-charts@oncall-1.5.5...grafana-7.3.12

</details>

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Co-authored-by: repo-jeeves[bot] <106431701+repo-jeeves[bot]@users.noreply.github.com>

kubernetes/main/apps/observability/grafana/app/helm-release.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: grafana
-      version: 7.3.11
+      version: 8.0.0
       sourceRef:
         kind: HelmRepository
         name: grafana-charts