chore(deps): update dependency @ionic/angular to v6

Author: renovate-bot

package-lock.json

@@ -51,7 +51,7 @@
     "@ionic-native/core": "5.18.0",
     "@ionic-native/splash-screen": "5.18.0",
     "@ionic-native/status-bar": "5.18.0",
-    "@ionic/angular": "4.11.7",
+    "@ionic/angular": "6.1.5",
     "@ionic/storage": "2.2.0",
     "@ngxs/logger-plugin": "3.6.0",
     "@ngxs/store": "3.6.0",