Update get-fellows-action to v1.1.1 (polkadot-fellows#265)

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.github/workflows/auto-merge.yml

@@ -14,7 +14,7 @@ jobs:
     if: ${{ github.event.issue.pull_request && startsWith(github.event.comment.body, '/merge') }}
     steps:
       - name: Get the GitHub handle of the fellows
-        uses: paritytech/get-fellows-action@v1.1.0
+        uses: paritytech/get-fellows-action@v1.1.1
         id: fellows
       - name: Generate a token
         id: merge_token