updated to newest package.json from preview.4

com.unity.perception/package.json

     "com.unity.collections": "0.9.0-preview.6",
     "com.unity.nuget.newtonsoft-json": "1.1.2",
     "com.unity.render-pipelines.core": "7.1.6",
-    "com.unity.simulation.capture": "0.0.10-preview.22",
+    "com.unity.simulation.capture": "0.0.10-preview.23",
     "com.unity.simulation.client": "0.0.10-preview.10",
     "com.unity.simulation.core": "0.0.10-preview.22"
   },
   "unity": "2019.4",
-  "version": "0.8.0-preview.3",
+  "version": "0.8.0-preview.4",
   "samples": [
     {
       "displayName": "Tutorial Files",
       "path": "Samples~/Human Pose Labeling and Randomization"
     }
   ]
-}
+}