chore: update charactercontroller example to use relay#3746

NoelStephensUnity wants to merge 6 commits intodevelop-2.0.0Unity-Technologies/com.unity.netcode.gameobjects:develop-2.0.0from

chore/update-charactercontroller-example-to-use-relayUnity-Technologies/com.unity.netcode.gameobjects:chore/update-charactercontroller-example-to-use-relayCopy head branch name to clipboard