PHP 8.3 support

[tyteen4a03]

Hi, could this release be tagged with 8.3 support as well?

[lentex]

@tyteen4a03 i'd be happy to accept a PR 🙏

[lentex]

Issue should be resolved, see https://github.com/karriereat/json-decoder/releases/tag/v5.0.1

Please verify