Autobuild Go in analyze if not already built

[angelapwen]

This change will run the autobuilder for Golang in the analyze step if:

• the feature flag golang_extraction_reconciliation_enabled is on
• the autobuild step has not already run for Go
• the user has not provided manual build steps for Go

This change should be a no-op for now, as if a user has not provided manual build steps for Go, we treat Go as an interpreted language and the autobuilder will run even if users have not included the autobuild action.

With some imminent changes where we will not treat Go as an interpreted language, we introduce this change to maintain backwards compatibility for users who may have removed the autobuild step and who have not provided manual build steps. In this case, we will still autobuild for them at the beginning of the analyze step.

Merge / deployment checklist

• Confirm this change is backwards compatible with existing workflows.
• Confirm the readme has been updated if necessary.
• Confirm the changelog has been updated if necessary.

[aeisenberg]

Two minor things.

[henrymercer]

I'll move this PR forward while Angela's on vacation. I'll start by addressing Andrew's review comments and adding a PR check to test the new behavior.

[aeisenberg]

Looks good. A minor comment.