Update async package

Author: thknieling

package-lock.json

@@ -11,6 +11,7 @@
     "@vue/composition-api": "^1.4.9",
     "ansi-html-community": "^0.0.8",
     "ansi-regex": "^6.0.1",
+    "async": "^2.6.4",
     "axios": "^0.24.0",
     "bootstrap": "^4.6.1",
     "bootstrap-vue": "^2.21.2",