[DOCS]: Current `go` example is out of date and broken

[jahabibi]

What type of issue is this?

Content is incorrect or unclear

Page URL (if applicable)

https://docs.upbound.io/getstarted/builders-workshop/create-configuration/

Description

The existing go composition example is broken and non functional with UXP V2. This needs to be updated to fall in line with kcl and python examples such that existing E2E test will pass.

Additional context

No response

[linear]

DOC-19