* Split changelog script from code-freeze
* Remove hardcoded repository info from testing
* Remove generation of changelog.txt file from automation
* Correct comments and add back write of readme
Remove change file normalization from code freeze action
This PR updates the code freeze action to remove the the change file normalization, as it was causing issues in this run of the action.
It should no longer be necessary now that we require valid change files and will soon have a pre-push hook to require that.