Update .gitea/workflows/release.yml

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [SonarSource/sonarqube-scan-action](https://github.com/SonarSource/sonarqube-scan-action) | action | major | `v4.2.1` -> `v5.0.0` |

---

### Release Notes

<details>
<summary>SonarSource/sonarqube-scan-action (SonarSource/sonarqube-scan-action)</summary>

### [`v5.0.0`](https://github.com/SonarSource/sonarqube-scan-action/releases/tag/v5.0.0)

[Compare Source](https://github.com/SonarSource/sonarqube-scan-action/compare/v4.2.1...v5.0.0)

#### What's Changed

-   SQSCANGHA-81 Update SonarScanner CLI to 7.0.2.4839 by [@&#8203;github-actions](https://github.com/github-actions) in https://github.com/SonarSource/sonarqube-scan-action/pull/175

**Full Changelog**: https://github.com/SonarSource/sonarqube-scan-action/compare/v4...v5.0.0

</details>

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### 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 is behind base branch, 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:eyJjcmVhdGVkSW5WZXIiOiIzOS4xNzEuMyIsInVwZGF0ZWRJblZlciI6IjM5LjE3MS4zIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJ0eXBlL2RlcGVuZGVuY2llcyJdfQ==-->

Reviewed-on: #470
Reviewed-by: Luke Tainton <luke@tainton.uk>
Co-authored-by: Renovate [BOT] <renovate-bot@git.tainton.uk>
Co-committed-by: Renovate [BOT] <renovate-bot@git.tainton.uk>

.gitea/workflows/release.yml

@@ -1,5 +1,6 @@
 name: Release
 on:
+  workflow_dispatch:
   schedule:
     - cron: "0 9 * * 0"
   issue_comment:
@@ -133,6 +134,12 @@ jobs:
           username: ${{ vars.GHCR_USERNAME }}
           password: ${{ secrets.GHCR_TOKEN }}
       
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5