build(deps): bump gulp-json-editor from 2.5.5 to 2.5.6

Bumps [gulp-json-editor](https://github.com/rejas/gulp-json-editor) from 2.5.5 to 2.5.6.
- [Release notes](https://github.com/rejas/gulp-json-editor/releases)
- [Changelog](https://github.com/rejas/gulp-json-editor/blob/main/CHANGELOG.md)
- [Commits](rejas/gulp-json-editor@v2.5.5...v2.5.6)

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