🔧 chore: update upload-artifact action to v4 in publish workflow

Author: Morgy93

.github/workflows/publish.yml

@@ -40,7 +40,7 @@ jobs:
         run: vsce package
 
       - name: Upload VSIX as Artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: vscode-ddev-phpmd
           path: "*.vsix"