Fix collapsing when there are several keys

[gsmet]

If you are updating a guide, please submit your pull request to the main repository: https://github.com/quarkusio/quarkus/tree/main/docs/src/main/asciidoc

[github-actions[bot]]

🎊 PR Preview f7fbeb85ca4ab38a79e75ebd66ca1f9780564983 has been successfully built and deployed to https://quarkus-site-pr-1988-preview.surge.sh

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