Update project manifest to point to the 2.0 packages

Packages/manifest.json

     "com.unity.purchasing": "2.0.6",
     "com.unity.textmeshpro": "1.3.0",
     "com.unity.timeline": "1.0.0",
-    "com.unity.xr.arcore": "1.0.0-preview.24",
-    "com.unity.xr.arfoundation": "1.0.0-preview.22",
-    "com.unity.xr.arkit": "1.0.0-preview.23",
+    "com.unity.xr.arcore": "2.0.2",
+    "com.unity.xr.arfoundation": "2.0.2",
+    "com.unity.xr.arkit": "2.0.1",
     "com.unity.xr.legacyinputhelpers": "1.0.0",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",