Fix interpolation issue in ci.yml

[tumes]

Attempting to run the cookie cutter runs a command that should actually be output as a string in the generated template.

[darkhelmet]

Is this the Error message: 'github' is undefined error?

I'm trying move my existing app to Lambda via Lamby and it's such a terrible process. It assumes you're starting from scratch and wants to run the cookie cutter, which doesn't run (error message above) for me, so I can't even get the bunch of files to look at. There doesn't seem to be a bundle exec lamby init action to run as there may have been in the past.

[Ulthran]

+1 to this. I'm just trying to follow the quickstart guide and it fails on the first command:

$ docker run   --rm   --interactive   --volume "${PWD}:/var/task"   ghcr.io/rails-lambda/lamby-cookiecutter   "gh:rails-lambda/lamby-cookiecutter"

project_name [my_awesome_lambda]:
Unable to create file '.github/workflows/ci.yml'
Error message: 'github' is undefined
Context: {
    "cookiecutter": {
        "_output_dir": "/var/task",
        "_template": "gh:rails-lambda/lamby-cookiecutter",
        "project_name": "my_awesome_lambda"
    }
}

This seems to be a fairly established problematic paradigm with cookiecutter (cookiecutter/cookiecutter#1624). With my limited experience with both cookiecutter and rails, I'm confused how this exists and how it's not something everyone runs into. What am I missing here?