Fake
note: This guide is now considered legacy and use of the new API is recommended. A high level guide to migrate to the new API can be found here.
FAKE includes a Raygun deployment target with it as of version 3.35, written by Vidarls on GitHub and contributed to the FAKE project.
You can find an example of its use in this gist.
As with all Deployment client libraries, you'll need to generate an External Auth Token from your Raygun User Settings page.