verify release.py script in pack job

Author: michalChrobot

.yamato/package-pack.yml

@@ -37,6 +37,7 @@ package_pack_-_ngo_{{ platform.name }}:
   variables:
     XRAY_PROFILE: "gold ./pvpExceptions.json"
   commands:
+    - python Tools/scripts/release.py # Needed to ensure that CHANGELOG is properly formatted for this test 
     - upm-pvp pack "com.unity.netcode.gameobjects" --output upm-ci~/packages
     - upm-pvp xray --packages "upm-ci~/packages/com.unity.netcode.gameobjects*.tgz" --results pvp-results
     - upm-pvp require {% if platform.name == "win" %}"%XRAY_PROFILE%"{% else %}"$XRAY_PROFILE"{% endif %} --results pvp-results --allow-missing