fix: Corrects memory leak in MessageRegistrationTests#2148

NoelStephensUnity merged 1 commit intodevelopUnity-Technologies/com.unity.netcode.gameobjects:developfrom

fix/memory_leak_in_MessageRegistrationTestsUnity-Technologies/com.unity.netcode.gameobjects:fix/memory_leak_in_MessageRegistrationTestsCopy head branch name to clipboard