Update @types/marked to version 4.0.8

Author: depfu[bot]

front-end/package-lock.json

@@ -49,7 +49,7 @@
     "@ionic/lab": "^3.2.11",
     "@types/jasmine": "~3.6.0",
     "@types/jasminewd2": "~2.0.3",
-    "@types/marked": "^4.0.3",
+    "@types/marked": "^4.0.8",
     "@types/node": "^12.11.1",
     "codelyzer": "^6.0.0",
     "cordova-plugin-device": "^2.0.2",