chore(deps): update promtail helm chart to v6.16.5 (#706)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [promtail](https://grafana.com/loki)
([source](https://togithub.com/grafana/helm-charts)) | patch | `6.16.4`
-> `6.16.5` |

---

### Release Notes

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

###
[`v6.16.5`](https://togithub.com/grafana/helm-charts/releases/tag/promtail-6.16.5)

[Compare
Source](https://togithub.com/grafana/helm-charts/compare/promtail-6.16.4...promtail-6.16.5)

Promtail is an agent which ships the contents of local logs to a Loki
instance

#### What's Changed

- \[promtail] Add automount option for service account and pod by
[@&#8203;emilkor1](https://togithub.com/emilkor1) in
[https://github.com/grafana/helm-charts/pull/2990](https://togithub.com/grafana/helm-charts/pull/2990)

**Full Changelog**:
grafana/helm-charts@grafana-sampling-1.0.1...promtail-6.16.5

</details>

---

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are satisfied.

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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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src/promtail/common/zarf.yaml

@@ -14,7 +14,7 @@ components:
         localPath: ../chart
       - name: promtail
         url: https://grafana.github.io/helm-charts/
-        version: 6.16.4
+        version: 6.16.5
         namespace: promtail
         gitPath: charts/promtail
         valuesFiles: