swap out token and token name (#4020)

## What are you changing in this pull request and why?
Fixing the token name so the workflow stops failing.

## Checklist
- [ ] ~~Review the [Content style
guide](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/content-style-guide.md)
and [About
versioning](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#adding-a-new-version)
so my content adheres to these guidelines.~~ n/a
- [ ] Add a checklist item for anything that needs to happen before this
PR is merged, such as "needs technical review" or "change base branch."

Needs technical review

.github/workflows/autogenerated_labeler.yml

@@ -37,4 +37,4 @@ jobs:
         run: |
           gh issue edit ${{ github.event.issue.number }} --add-label "${{ steps.repo.outputs.labels }}"
         env:
-          GITHUB_TOKEN: ${{ secrets.FISHTOWN_BOT_PAT }}
+          GH_TOKEN: ${{ secrets.DOCS_SECRET }}