Go-github: DeploymentStatus type does not contain all possible keys

[jrossiter]

I'm using go-github in conjunction with GitHub Actions + Deployments.
During deployments we update the deployment status and provide a log_url value that points back to the current GitHub actions URL.
We then use github.Client.Repositories.ListDeploymentStatuses to retrieve the statuses to retrieve the log URL.

There are a few issues that I can see:

1. The ListDeploymentStatuses method doesn't contain preview headers. (though GetDeploymentStatus does contain the headers)
2. The DeploymentStatus type doesn't have all available fields so if you provide the headers it won't parse them anyway.
3. The response body seems to be closed before its returned to the requester so we can't manually parse the raw JSON response.

[gmlewis]

Thank you @jrossiter for the report. Yes, it looks like you are correct... would you like to submit a PR?
(Item # 3 should not be an issue once the first two items are resolved, agreed?)

If @jrossiter doesn't want to work on this issue, it would be a great one for any new contributor to this repo or a new Go developer.
All contributions are greatly appreciated!

Feel free to volunteer for any issue and the issue can be assigned to you so that others don't attempt to duplicate the work.

Please check out our CONTRIBUTING.md guide to get started.

Thank you!

[jrossiter]

Thanks @gmlewis, I can work on a PR.

Yes, # 3 won't be an issue with the others resolved :)

[gmlewis]

Excellent! Thank you, @jrossiter... it is yours.

[jrossiter]

@gmlewis PR created 👍