Update dependencies for version 12.0.0-alpha5

bower.json

     "update-core-version.js"
   ],
   "dependencies": {
-    "vaadin-core": "12.0.0-alpha4",
-    "vaadin-board": "vaadin-board#2.1.0-alpha1",
-    "vaadin-charts": "vaadin-charts#6.2.0-alpha1",
-    "vaadin-confirm-dialog": "vaadin-confirm-dialog#1.1.0-alpha1",
-    "vaadin-cookie-consent": "vaadin-cookie-consent#1.1.0-alpha2",
-    "vaadin-app-layout": "vaadin-app-layout#1.0.0-alpha2"
+    "vaadin-core": "vaadin-core#12.0.0-alpha5",
+    "vaadin-board": "vaadin-board#2.1.0-beta1",
+    "vaadin-charts": "vaadin-charts#6.2.0-beta1",
+    "vaadin-confirm-dialog": "vaadin-confirm-dialog#1.1.0-beta1",
+    "vaadin-cookie-consent": "vaadin-cookie-consent#1.1.0-beta1",
+    "vaadin-app-layout": "vaadin-app-layout#1.0.0-beta1"
   }
 }

package.json

 {
   "name": "@vaadin/vaadin",
-  "version": "12.0.0-alpha4",
+  "version": "",
   "description": "Vaadin Elements is an evolving set of open source custom HTML elements for building mobile and desktop web applications in modern browsers.",
   "author": "Vaadin Ltd",
   "license": "(Apache-2.0 OR SEE LICENSE IN https://vaadin.com/license/cval-3.0)",
   "dependencies": {
-    "@vaadin/vaadin-core": "12.0.0-alpha4",
-    "@vaadin/vaadin-board": "2.1.0-alpha1",
-    "@vaadin/vaadin-charts": "6.2.0-alpha1",
-    "@vaadin/vaadin-confirm-dialog": "1.1.0-alpha1",
-    "@vaadin/vaadin-cookie-consent": "1.1.0-alpha2",
-    "@vaadin/vaadin-app-layout": "1.0.0-alpha2"
+    "@vaadin/vaadin-core": "12.0.0-alpha5",
+    "@vaadin/vaadin-board": "2.1.0-beta1",
+    "@vaadin/vaadin-charts": "6.2.0-beta1",
+    "@vaadin/vaadin-confirm-dialog": "1.1.0-beta1",
+    "@vaadin/vaadin-cookie-consent": "1.1.0-beta1",
+    "@vaadin/vaadin-app-layout": "1.0.0-beta1"
   },
   "files": [],
   "scripts": {
     "webcomponents",
     "web-components"
   ]
-}
+}