fix: update Scarf.js to v1.4.0 to avoid breaking Vitest

[char0n]

Refs https://github.com/swagger-api/swagger-ui/issues/10197

[swagger-bot]

:tada: This PR is included in version 5.0.0-alpha.98 :tada:

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: