chore(deps): update actions/labeler action to v6 (#30668)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/labeler](https://redirect.github.com/actions/labeler) |
action | major | `v5` -> `v6` |

---

### Release Notes

<details>
<summary>actions/labeler (actions/labeler)</summary>

### [`v6`](https://redirect.github.com/actions/labeler/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/labeler/compare/v5...v6)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "every weekday before 11am" (UTC),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Never, 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 was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/ionic-team/ionic-framework).

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/label.yml

@@ -13,7 +13,7 @@ jobs:
   triage:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/labeler@v5
+    - uses: actions/labeler@v6
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
         sync-labels: true