chore: make docs retry mechanism more robust

.github/workflows/registry-docs-pr-based.yml

@@ -192,7 +192,7 @@ jobs:
           git checkout -b d-cdktf-docs-${{ github.run_id }}-${{ github.run_number }}
           git add .
           git commit -m "cdktf: update ${{ matrix.files }}"
-          for i in $(seq 1 10); do (git pull origin d-cdktf-docs-${{ github.run_id }}-${{ github.run_number }} --rebase && git push origin d-cdktf-docs-${{ github.run_id }}-${{ github.run_number }}) && break || (git rebase --abort && sleep 15); done
+          for i in $(seq 1 10); do git pull origin d-cdktf-docs-${{ github.run_id }}-${{ github.run_number }} --rebase && git push origin d-cdktf-docs-${{ github.run_id }}-${{ github.run_number }}) && break || ((git rebase --abort || echo 'rebase could not be aborted, maybe no rebase is in progress?') && sleep 15); done
 
   cdktfDocsCreatePR:
     needs: