Update dependencies for version 15.0.0-beta5

package.json

@@ -10,7 +10,7 @@
     "@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-beta4",
+    "@vaadin/vaadin-core": "^15.0.0-beta5",
     "@vaadin/vaadin-crud": "^1.1.0",
     "@vaadin/vaadin-grid-pro": "^2.0.6",
     "@vaadin/vaadin-rich-text-editor": "^1.1.1"