fix: Updating UTP to fix Analyzers compile issue in 20.3 (Unity-Technologies#1478)

Author: andrews-unity

com.unity.netcode.adapter.utp/CHANGELOG.md

@@ -6,7 +6,7 @@ All notable changes to this package will be documented in this file. The format
 ### Changed
 
 - Removed 'Maximum Packet Size' configuration field in the inspector. This would cause confusion since the maximum packet size is in effect always the MTU (1400 bytes on most platforms).
-- Updated com.unity.transport to 1.0.0-pre.8
+- Updated com.unity.transport to 1.0.0-pre.9
 
 
 ### Fixed

com.unity.netcode.adapter.utp/package.json

@@ -6,6 +6,6 @@
   "unity": "2020.3",
   "dependencies": {
     "com.unity.netcode.gameobjects": "1.0.0-pre.3",
-    "com.unity.transport": "1.0.0-pre.8"
+    "com.unity.transport": "1.0.0-pre.9"
   }
 }