chore(deps): update commitlint/commitlint docker tag to v20.5.3 (#140)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [commitlint/commitlint](https://github.com/conventional-changelog/commitlint) | container | patch | `20.5.2` → `20.5.3` |

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### Release Notes

<details>
<summary>conventional-changelog/commitlint (commitlint/commitlint)</summary>

### [`v20.5.3`](https://github.com/conventional-changelog/commitlint/blob/HEAD/CHANGELOG.md#2053-2026-04-30)

[Compare Source](https://github.com/conventional-changelog/commitlint/compare/v20.5.2...v20.5.3)

**Note:** Version bump only for package [@&#8203;commitlint/root](https://github.com/commitlint/root)

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - Only on Sunday and Saturday (`* * * * 0,6`)
- Automerge
  - Between 12:00 AM and 03:59 AM (`* 0-3 * * *`)

🚦 **Automerge**: Enabled.

♻ **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 [Mend Renovate](https://github.com/renovatebot/renovate).
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Reviewed-on: https://gitea.com/gitea/helm-actions/pulls/140
Reviewed-by: DaanSelen <135789+daanselen@noreply.gitea.com>
Co-authored-by: Renovate Bot <renovate-bot@gitea.com>
Co-committed-by: Renovate Bot <renovate-bot@gitea.com>

.gitea/workflows/commitlint.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   check-and-test:
     runs-on: ubuntu-latest
-    container: commitlint/commitlint:20.5.2
+    container: commitlint/commitlint:20.5.3
     steps:
       - uses: actions/checkout@v6
       - name: check PR title