request help: 这个库是不维护了么，main分支这么久也没发版了

### Issue description

### Environment

* APISIX Go Plugin Runner's version:
* APISIX version:
* Go version:
* OS (cmd: `uname -a`):
例如修改请求体等功能在主分支都已经半年多了，都是很实际的功能啊

No source file, test, or entry point is named. First review the main branch and release history, then check the status of the request-body-related functionality mentioned in the issue. Done would require a maintainer decision about project maintenance and a release plan, so this is not a self-contained newcomer task.

Written by the indexing model from the issue text.