Bump @github/webauthn-json from 0.5.5 to 0.5.6 (#14946)

Bumps [@github/webauthn-json](https://github.com/github/webauthn-json) from 0.5.5 to 0.5.6.
- [Release notes](https://github.com/github/webauthn-json/releases)
- [Commits](https://github.com/github/webauthn-json/compare/v0.5.5...v0.5.6

)

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