Update actions/checkout action to v5

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)) | major | `76.5.1` -> `77.0.0` |

---

### Release Notes

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

### [`v77.0.0`](https://github.com/prometheus-community/helm-charts/releases/tag/kube-prometheus-stack-77.0.0)

[Compare Source](https://github.com/prometheus-community/helm-charts/compare/kube-prometheus-stack-76.5.1...kube-prometheus-stack-77.0.0)

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] bump to 0.85.0 by [@&#8203;DrFaust92](https://github.com/DrFaust92) in https://github.com/prometheus-community/helm-charts/pull/6084

**Full Changelog**: https://github.com/prometheus-community/helm-charts/compare/prometheus-redis-exporter-6.16.0...kube-prometheus-stack-77.0.0

</details>

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### Configuration

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Reviewed-on: #1298
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/monitoring/kube-prometheus-stack/Chart.yaml

@@ -19,7 +19,7 @@ maintainers:
   - name: alexlebens
 dependencies:
   - name: kube-prometheus-stack
-    version: 76.5.1
+    version: 77.0.0
     repository: oci://ghcr.io/prometheus-community/charts
   - name: app-template
     alias: ntfy-alertmanager

clusters/cl01tl/services/tailscale-operator/Chart.yaml

@@ -17,7 +17,7 @@ maintainers:
   - name: alexlebens
 dependencies:
   - name: tailscale-operator
-    version: 1.86.2
+    version: 1.86.5
     repository: https://pkgs.tailscale.com/helmcharts
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/tailscale-light.png
 appVersion: v1.82.5