[CT-3171] [Bug] user docs autogenerated issues sometimes are duplicated

[emmyoop]

Is this a new bug in dbt-core?

• I believe this is a new bug in dbt-core
• I have searched the existing issues, and I could not find an existing issue for this bug

Current Behavior

We're seeing some weirdness with the GitHub Action. See how this Core PR created two bot comments that created two docs issues: this one and this one.

Expected Behavior

Only 1 issue gets generated per PR - this can be accomplished by checking that the label added by the labeled event was user docs

Steps To Reproduce

This is really a timing issue. In the case of the above PR, a label was added right after the PR was merged causing the workflow to trigger twice and since they ran simultaneously neither saw the comment the other generated in time to know to skip creating a new issue in the docs.getdbt.com repo.

Relevant log output

No response

Environment

- OS:
- Python:
- dbt:

Which database adapter are you using with dbt?

No response

Additional Context

No response