build: checkout before setting up Go

[knqyf263]

Description

The source code needs to be checked out before setting up Go as go-version-file refers to go.mod.

Related PRs

• chore: bump Go to 1.19 #2861

The above PR introduced the issue.

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).