Update ci.yml

Author: phodal

.github/workflows/ci.yml

@@ -74,7 +74,7 @@ jobs:
 
       # Store already-built plugin as an artifact for downloading
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ steps.artifact.outputs.filename }}
           path: ${{ steps.artifact.outputs.filename }}