chore(deps): update actions/setup-node action to v6 (#354)

This PR contains the following updates:

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

---

### Release Notes

<details>
<summary>actions/setup-node (actions/setup-node)</summary>

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

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

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **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

---

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Author: Lulalaby

.github/workflows/continuous-integration.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Add problem matcher
         run: echo "::add-matcher::.github/problemMatchers/eslint.json"
       - name: Use Node.js v19.5.0
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 22.19.0
           cache: yarn
@@ -34,7 +34,7 @@ jobs:
       - name: Add problem matcher
         run: echo "::add-matcher::.github/problemMatchers/tsc.json"
       - name: Use Node.js v19.5.0
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 22.19.0
           cache: yarn