Update Helm release loki to v6.45.2 (#1918)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [loki](https://grafana.github.io/helm-charts) ([source](https://github.com/grafana/helm-charts)) | minor | `6.44.0` -> `6.45.2` |

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### Configuration

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Reviewed-on: #1918
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/monitoring/loki/Chart.yaml

@@ -16,7 +16,7 @@ maintainers:
   - name: alexlebens
 dependencies:
   - name: loki
-    version: 6.44.0
+    version: 6.45.2
     repository: https://grafana.github.io/helm-charts
   - name: promtail
     version: 6.17.1