Use correct github token for changed actions

Author: mullermp

.github/workflows/changelog.yml

@@ -12,7 +12,7 @@ jobs:
         id: changed-files
         uses: tj-actions/changed-files@27ae6b33eaed7bf87272fdeb9f1c54f9facc9d99
         with:
-          githubToken: ${{ secrets.GITHUB_TOKEN }}
+          token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Comment on PR
         if: ${{!contains(steps.changed-files.outputs.all_changed_files, 'gems/aws-sdk-core/CHANGELOG.md')}}