chore(deps): update actions/upload-artifact action to v6 (#18)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/upload-artifact](https://redirect.github.com/actions/upload-artifact) | action | major | `v4` → `v6` |

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### Release Notes

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

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

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

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

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

</details>

---

### Configuration

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🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

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Author: renovate[bot]

.github/workflows/ci.yaml

@@ -33,7 +33,7 @@ jobs:
 
       - name: Upload test logs
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: test-logs-${{ matrix.os }}-${{ hashFiles(matrix.folder) }}
           path: |