Update @ionic/angular to version 6.5.2

Author: depfu[bot]

front-end/package-lock.json

@@ -25,7 +25,7 @@
     "@ionic-native/core": "^5.36.0",
     "@ionic-native/splash-screen": "^5.36.0",
     "@ionic-native/status-bar": "^5.36.0",
-    "@ionic/angular": "^6.5.1",
+    "@ionic/angular": "^6.5.2",
     "cordova-browser": "^6.0.0",
     "core-js": "^2.6.12",
     "firebase": "^9.16.0",