Fix: Deprecated artifacts follow up (aws-observability#327)

*Issue #, if available:*
The previous fix did not work because `download-artifacts@v3` is also
deprecated and must be updated.
```
Error: This request has been automatically failed because it uses a deprecated version of `actions/download-artifact: v3`. Learn more: https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions/
```

Previous fix:
aws-observability#326

*Description of changes:*
- Updating `download-artifacts@v3` to `v4`.
- Also fixing syntax error for name pattern.


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.github/workflows/application-signals-e2e-test.yml

@@ -34,7 +34,7 @@ jobs:
           role-to-assume: arn:aws:iam::${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ACCOUNT_ID }}:role/${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ROLE_NAME }}
           aws-region: us-east-1
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: ${{ inputs.staging-wheel-name }}
 

.github/workflows/release-lambda.yml

@@ -146,7 +146,7 @@ jobs:
       - name: download layerARNs
         uses: actions/download-artifact@v4
         with:
-          name: ${{ env.LAYER_NAME }}-*
+          pattern: ${{ env.LAYER_NAME }}-*
           path: ${{ env.LAYER_NAME }}
           merge-multiple: true
       - name: show layerARNs