Update dependencies for version 16.0.0-alpha1

package.json

@@ -10,9 +10,9 @@
     "@vaadin/vaadin-charts": "^6.2.4",
     "@vaadin/vaadin-confirm-dialog": "^1.1.6",
     "@vaadin/vaadin-cookie-consent": "^1.1.2",
-    "@vaadin/vaadin-core": "^15.0.0-rc1",
+    "@vaadin/vaadin-core": "^16.0.0-alpha1",
     "@vaadin/vaadin-crud": "^1.1.0",
-    "@vaadin/vaadin-grid-pro": "^2.0.6",
+    "@vaadin/vaadin-grid-pro": "^2.0.7",
     "@vaadin/vaadin-rich-text-editor": "^1.1.1"
   },
   "files": [