Converted github action for code review checklist to the new yaml format

Pull Request Review Checklist:

[ ] Variable have been given sensible, meaningful names.
[ ] LINQ to SQL datacontexts must always be initialised with an explicit connection string drawn from a config file.
[ ] Code is DRY (Dont Repeat Yourself). (But make sure where this is applied, the two things are actually the same!)
[ ] No values have been hard-coded where they should be drawn from a config file.
[ ] Comments are present where appropriate, and provide useful information not just stating what the code is obviously doing.
[ ] Error handling is performed appropriately where things might fail.
[ ] Logging is present, useful, and uses log levels appropriately.
[ ] If new app config values are referenced in the code, a placeholder must be committed in the config file.
[ ] If new app config values are referenced in the code, they must be added to octopus before approving this PR.
[ ] For projects with snapshotting, any new fields added to viewmodels must declare datamembers appropriately.
[ ] For projects with snapshotting, any new viewmodels should be added to the snapshot load/save code in the bootstrapper.