Use version v4 for actions/download-artifact

Author: sgilmore10

dev/tasks/matlab/github.yml

@@ -133,7 +133,7 @@ jobs:
     steps:
       {{ macros.github_checkout_arrow(fetch_depth=0)|indent }}
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           path: artifacts-downloaded
       - name: Decompress Artifacts