Add Github Actions and Dependabot

[houstonj1]

• Adds scheduled Github Action for automated Helm updates
• Adds git tag for Helm major versions (#127)
• Adds dependabot for updating the Dockerfile base image (#125)

@devth This is a first pass at this, let me know what you think 😄

[devth]

@houstonj1 sorry for the delay, was offline for the long weekend!

This looks awesome. I'm wondering how this could be event driven instead of updating on a schedule for the helm part (Docker image is fine to update less often). It'd be amazing if new Docker images were released minutes or seconds after every helm release.

As far as I can tell GitHub doesn't have a native way to trigger actions when another repo has a release. I currently have a Zapier that creates new GitHub issues like this on every release. We could use the issues trigger to run the Update Helm workflow. It's a little bit of a hack I know, but it does achieve the desired result.

What do you think? I'm happy to accept this PR as is and wire up the issues trigger myself.

The Zap is pretty flexible:

So I could include the version in a more parsable format.

[houstonj1]

Sounds good to me. I can't wait until GIthub can do what that zap is doing 😄 How does that look?

[devth]

@houstonj1 looks great, thanks!!