Change ACCESS_TOKEN to GITHUB_TOKEN in automerge.yaml

Author: wurstbrot

.github/workflows/automerge.yaml

@@ -16,12 +16,12 @@ jobs:
         id: metadata
         uses: dependabot/fetch-metadata@v1
         with:
-          github-token: "${{secrets.ACCESS_TOKEN}}"
+          github-token: "${{secrets.GITHUB_TOKEN}}"
 
       - name: Auto-merge minor and patch updates
         if: steps.metadata.outputs.update-type == 'version-update:semver-minor' || steps.metadata.outputs.update-type == 'version-update:semver-patch'
         run: |
           gh pr merge --auto --squash "$PR_URL"
         env:
           PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{secrets.ACCESS_TOKEN}}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}