chore: update upload action version

Author: lifeart

.github/workflows/workflow.yaml

@@ -75,7 +75,7 @@ jobs:
         run: yarn vs:package
 
       - name: upload vsix as artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: vscode-ember-${{steps.gitversion.outputs.majorMinorPatch}}.vsix
           path: ${{github.workspace}}/vscode-ember-${{steps.gitversion.outputs.majorMinorPatch}}.vsix