build(github-actions): Bump dependency node to v24.15.0 (#484)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [node](https://redirect.github.com/actions/node-versions) | uses-with
| minor | `24.14.1` → `24.15.0` |

---

### Release Notes

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

###
[`v24.15.0`](https://redirect.github.com/actions/node-versions/releases/tag/24.15.0-24511264946):
24.15.0

[Compare
Source](https://redirect.github.com/actions/node-versions/compare/24.14.1-23521883727...24.15.0-24511264946)

Node.js 24.15.0

</details>

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.github/workflows/deploy.yml

@@ -15,7 +15,7 @@ jobs:
     - name: Setup Node.js environment
       uses: actions/setup-node@v6
       with:
-        node-version: 24.14.1
+        node-version: 24.15.0
 
     - run: npm install
     - run: npm run build

.github/workflows/github-ci.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Use Node.js LTS 20.19.5
       uses: actions/setup-node@v6
       with:
-        node-version: 24.14.1
+        node-version: 24.15.0
 
     - name: Install dependencies
       run: npm ci --engine-strict # --engine-strict is used to fail-fast if deps require node versions unsupported by the repo