updated manifest

Packages/manifest.json

 {
   "registry": "https://staging-packages.unity.com",
   "dependencies": {
-    "com.unity.burst": "1.0.4",
+    "com.unity.burst": "1.1.0-preview.2",
-    "com.unity.package-manager-ui": "2.2.0",
     "com.unity.recorder": "2.0.2-preview.1",
     "com.unity.render-pipelines.core": "file:/Users/andremcgrail/Documents/UnityProjects/Github/SRP_Master/com.unity.render-pipelines.core",
     "com.unity.render-pipelines.lightweight": "file:/Users/andremcgrail/Documents/UnityProjects/Github/SRP_Master/com.unity.render-pipelines.lightweight",