* refactor(json): export json codec * feat(json): support custom json codec at runtime * chore(copyright): update copyright to 2025 gin core team * docs(gin): add custom json codec examples in doc file
Co-authored-by: thinkerou <thinkerou@gmail.com>
* Relocate binding body tests Every test file should be related to a tested file. Remove useless tests. * Add github.com/stretchr/testify/require package