Update download-artifact to 4.1.4

Seems like build-and-inspect-python-package is using a more recent upload-artifact version, so we need to update download-artifact along with it.

Author: nicoddemus

.github/workflows/test.yml

@@ -42,7 +42,7 @@ jobs:
         fetch-depth: 0
 
     - name: Download Package
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4.1.4
       with:
         name: Packages
         path: dist