chore: Bump package version to pre.9 (#1956)

Author: ashwinimurt

com.unity.netcode.gameobjects/CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).
 
+## [1.0.0-pre.9] - 2022-05-10
+
 ### Fixed
 
 - Fixed Hosting again after failing to host now works correctly (#1938)
@@ -19,9 +21,9 @@ Additional documentation and release notes are available at [Multiplayer Documen
 - `unmanaged` structs are no longer universally accepted as RPC parameters because some structs (i.e., structs with pointers in them, such as `NativeList<T>`) can't be supported by the default memcpy struct serializer. Structs that are intended to be serialized across the network must add `INetworkSerializeByMemcpy` to the interface list (i.e., `struct Foo : INetworkSerializeByMemcpy`). This interface is empty and just serves to mark the struct as compatible with memcpy serialization. For external structs you can't edit, you can pass them to RPCs by wrapping them in `ForceNetworkSerializeByMemcpy<T>`. (#1901)
 
 ### Removed
-- Removed `SIPTransport` (#1870)
 
-- Removed `ClientNetworkTransform` from the package samples and moved to Boss Room's Utilities package which can be found [here](https://github.com/Unity-Technologies/com.unity.multiplayer.samples.coop/blob/main/Packages/com.unity.multiplayer.samples.coop/Utilities/Net/ClientAuthority/ClientNetworkTransform.cs).
+- Removed `SIPTransport` (#1870)
+- Removed `ClientNetworkTransform` from the package samples and moved to Boss Room's Utilities package which can be found [here](https://github.com/Unity-Technologies/com.unity.multiplayer.samples.coop/blob/main/Packages/com.unity.multiplayer.samples.coop/Utilities/Net/ClientAuthority/ClientNetworkTransform.cs) (#1912).
 
 ### Fixed
 

com.unity.netcode.gameobjects/package.json

@@ -2,7 +2,7 @@
     "name": "com.unity.netcode.gameobjects",
     "displayName": "Netcode for GameObjects",
     "description": "Netcode for GameObjects is a high-level netcode SDK that provides networking capabilities to GameObject/MonoBehaviour workflows within Unity and sits on top of underlying transport layer.",
-    "version": "1.0.0-pre.8",
+    "version": "1.0.0-pre.9",
     "unity": "2020.3",
     "dependencies": {
         "com.unity.nuget.mono-cecil": "1.10.1",