Updated package references

Packages/manifest.json

     "com.unity.textmeshpro": "3.0.3",
     "com.unity.timeline": "1.5.1-pre.3",
     "com.unity.ugui": "1.0.0",
-    "com.unity.ui": "file:../../com.unity.ui/com.unity.ui",
-    "com.unity.ui.builder": "1.0.0-preview.11",
+    "com.unity.ui": "1.0.0-preview.14",
+    "com.unity.ui.builder": "1.0.0-preview.12",
     "com.unity.vectorgraphics": "2.0.0-preview.12",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",

Packages/packages-lock.json

       }
     },
     "com.unity.ui": {
-      "version": "file:../../com.unity.ui/com.unity.ui",
+      "version": "1.0.0-preview.14",
-      "source": "local",
+      "source": "registry",
-      }
+      },
+      "url": "https://packages.unity.com"
-      "version": "1.0.0-preview.11",
+      "version": "1.0.0-preview.12",
       "depth": 0,
       "source": "registry",
       "dependencies": {},