feat: split goreleaser configs into separate files

[aymanbagabas]

Use Goreleaser include feature to split the configs into smaller components.

Fixes: #69

[aymanbagabas]

@caarlos0 can we pass a list as a variable? So instead of hard-coding the dependencies here, we pass it as a variable dependencies: [ "foo", "bar" ] then refer to it by dependencies: {{ .Var.dependencies }}

https://github.com/charmbracelet/meta/blob/main/goreleaser-soft-serve.yaml#L105-L106
https://github.com/charmbracelet/meta/blob/main/goreleaser-soft-serve.yaml#L129-L130

[caarlos0]

unfortunately no... I have an internal ticket to figure out ways to override things without using variables, but haven't made any progress on it yet.