Core and Authentication package updates

Packages/manifest.json

     "com.unity.ide.visualstudio": "2.0.11",
     "com.unity.ide.vscode": "1.2.3",
     "com.unity.nuget.newtonsoft-json": "2.0.0",
-    "com.unity.services.authentication": "1.0.0-pre.4",
-    "com.unity.services.core": "1.0.0",
+    "com.unity.services.authentication": "1.0.0-pre.6",
+    "com.unity.services.core": "1.1.0-pre.9",
     "com.unity.services.lobby": "1.0.0-pre.4",
     "com.unity.services.relay": "1.0.1-pre.1",
     "com.unity.services.vivox": "15.1.150000-pre.6",

Packages/packages-lock.json

       "url": "https://packages.unity.com"
     },
     "com.unity.services.authentication": {
-      "version": "1.0.0-pre.4",
+      "version": "1.0.0-pre.6",
-        "com.unity.services.core": "1.1.0-pre.8",
+        "com.unity.services.core": "1.1.0-pre.9",
-      "version": "1.1.0-pre.8",
-      "depth": 1,
+      "version": "1.1.0-pre.9",
+      "depth": 0,
       "source": "registry",
       "dependencies": {
         "com.unity.modules.unitywebrequest": "1.0.0"