chore(deps): update helm release kube-prometheus-stack to v51.9.4 (#160)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [kube-prometheus-stack](https://github.com/prometheus-operator/kube-prometheus) ([source](https://github.com/prometheus-community/helm-charts)) | patch | `51.9.1` -> `51.9.4` |

---

### Release Notes

<details>
<summary>prometheus-community/helm-charts (kube-prometheus-stack)</summary>

### [`v51.9.4`](https://github.com/prometheus-community/helm-charts/releases/tag/kube-prometheus-stack-51.9.4)

[Compare Source](prometheus-community/helm-charts@kube-prometheus-stack-51.9.3...kube-prometheus-stack-51.9.4)

kube-prometheus-stack collects Kubernetes manifests, Grafana dashboards, and Prometheus rules combined with documentation and scripts to provide easy to operate end-to-end Kubernetes cluster monitoring with Prometheus using the Prometheus Operator.

#### What's Changed

-   \[kube-prometheus-stack] Update CoreDNS Dashboard. Add job template variable by [@&#8203;StianOvrevage](https://github.com/StianOvrevage) in prometheus-community/helm-charts#3798

#### New Contributors

-   [@&#8203;StianOvrevage](https://github.com/StianOvrevage) made their first contribution in prometheus-community/helm-charts#3798

**Full Changelog**: prometheus-community/helm-charts@kube-prometheus-stack-51.9.3...kube-prometheus-stack-51.9.4

### [`v51.9.3`](https://github.com/prometheus-community/helm-charts/releases/tag/kube-prometheus-stack-51.9.3)

[Compare Source](prometheus-community/helm-charts@kube-prometheus-stack-51.9.2...kube-prometheus-stack-51.9.3)

kube-prometheus-stack collects Kubernetes manifests, Grafana dashboards, and Prometheus rules combined with documentation and scripts to provide easy to operate end-to-end Kubernetes cluster monitoring with Prometheus using the Prometheus Operator.

#### What's Changed

-   \[kube-prometheus-stack] Fix etcd dashboards by [@&#8203;QuentinBisson](https://github.com/QuentinBisson) in prometheus-community/helm-charts#3917

**Full Changelog**: prometheus-community/helm-charts@kube-prometheus-stack-51.9.2...kube-prometheus-stack-51.9.3

### [`v51.9.2`](https://github.com/prometheus-community/helm-charts/releases/tag/kube-prometheus-stack-51.9.2)

[Compare Source](prometheus-community/helm-charts@kube-prometheus-stack-51.9.1...kube-prometheus-stack-51.9.2)

kube-prometheus-stack collects Kubernetes manifests, Grafana dashboards, and Prometheus rules combined with documentation and scripts to provide easy to operate end-to-end Kubernetes cluster monitoring with Prometheus using the Prometheus Operator.

#### What's Changed

-   \[kube-prometheus-stack] fixes thanos ruler object store configs by [@&#8203;thameezb](https://github.com/thameezb) in prometheus-community/helm-charts#3913

**Full Changelog**: prometheus-community/helm-charts@kube-prometheus-stack-51.9.1...kube-prometheus-stack-51.9.2

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNy4wIiwidXBkYXRlZEluVmVyIjoiMzcuMjcuMCIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

Reviewed-on: https://git.home/nrdufour/home-ops/pulls/160
Co-authored-by: Renovate <[email protected]>
Co-committed-by: Renovate <[email protected]>

kubernetes/main/apps/monitoring/kube-prometheus-stack/app/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: 51.9.1
+      version: 51.9.4
       sourceRef:
         kind: HelmRepository
         name: prometheus-community-charts