modify test to account for newlines

Author: michalChrobot

.yamato/package-pack.yml

@@ -37,6 +37,9 @@ package_pack_-_ngo_{{ platform.name }}:
   variables:
     XRAY_PROFILE: "supported ./pvpExceptions.json"
   commands:
+{% if platform.name == "win" %}
+    - powershell -Command "(Get-Content -Path 'CHANGELOG.md' -Raw) -replace \"`r`n\", \"`n\" | Set-Content -Path 'CHANGELOG.md' -NoNewline"
+{% endif %}
     - python Tools/scripts/release.py # Needed to ensure that CHANGELOG is properly formatted for this test due to the fact that we have bumped package version (to properly perform vetting tests)
     - 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