[json] files residing in code bus and not having a `:names` should not return a 502

[dominique-pfister]

It otherwise contributes to our error quota on aem.page|live.

[github-actions[bot]]

:tada: This issue has been resolved in version 6.15.4 :tada:

The release is available on:

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

Your semantic-release bot :package::rocket: