chore(deps): update actions/download-artifact action to v5 (#1573)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/download-artifact](https://redirect.github.com/actions/download-artifact)
| action | major | `v4` -> `v5` |

---

### Release Notes

<details>
<summary>actions/download-artifact (actions/download-artifact)</summary>

###
[`v5`](https://redirect.github.com/actions/download-artifact/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v4...v5)

</details>

---

### 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 becomes conflicted, 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/unraid/api).

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.github/workflows/build-plugin.yml

@@ -88,19 +88,19 @@ jobs:
           pnpm install --frozen-lockfile --filter @unraid/connect-plugin
 
       - name: Download Unraid UI Components
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: unraid-wc-ui
           path: ${{ github.workspace }}/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.my.servers/unraid-components/uui
           merge-multiple: true
       - name: Download Unraid Web Components
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           pattern: unraid-wc-rich
           path: ${{ github.workspace }}/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.my.servers/unraid-components/nuxt
           merge-multiple: true
       - name: Download Unraid API
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: unraid-api
           path: ${{ github.workspace }}/plugin/api/