Merge pull request rust-lang#1896 from jdno/upgrade-action

Upgrade actions/upload-artifact action

Author: marioidival

.github/workflows/rbe.yml

@@ -72,7 +72,7 @@ jobs:
         done
 
     - name: Upload Artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: rust-by-example
         path: book