chore: Update action version.

Author: jgonzalez-at-wiris

.github/workflows/jsdoc.yml

@@ -65,7 +65,7 @@ jobs:
 
       # 06. Upload the jsdoc site to github artifacts
       - name: Upload artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: mathtype-html-integration-devkit-docs
           path: |