Remove laminas-json

[arhimede]

Bug Report

Q	A
Version(s)	x.y.z

Summary

TSC decided to mark the package laminas-json as abandoned.

Current behavior

Package laminas/laminas-json is abandoned, you should avoid using it. No replacement was suggested.

Expected behavior

No laminas-json mention in composer.

[gsteel]

It's already removed in 3.0-dev, but it can't be killed in 2.x because it would be a BC break in the Json View Helper due to the possible, but deprecated usage of the expression finder functionality.

Potentially, it could be moved to dev deps in 2.x as an "optional" dependency, but I think that would be a bad idea, and a source of confusion for people who use the Json view helper to simply encode data

[gsteel]

FYI, its usage inside of JsonModel and JsonRenderer can easily be swapped out with native json_encode - it's usage in the view helper which is problematic

[gsteel]

Ref #237 and #238