chore(deps): update eclipse-mosquitto docker tag to v2.0.18 (#92)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| eclipse-mosquitto | patch | `2.0.17` -> `2.0.18` |

---

### 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 these updates 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:eyJjcmVhdGVkSW5WZXIiOiIzNi45Ni4wIiwidXBkYXRlZEluVmVyIjoiMzYuOTYuMCIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

Reviewed-on: https://git.home/nrdufour/home-ops/pulls/92
Co-authored-by: Renovate <[email protected]>
Co-committed-by: Renovate <[email protected]>

kubernetes/main/apps/default/mqtt/app/deployment.yaml

@@ -21,7 +21,7 @@ spec:
         runAsGroup: 1883
       containers:
       - name: mqtt
-        image: eclipse-mosquitto:2.0.17
+        image: eclipse-mosquitto:2.0.18
         ports:
         - containerPort: 1883
         - containerPort: 9001