ref: upgrade honcho to eliminate warning in python3.8 (#38356)
```
/Users/mitsuhiko/.pyenv/versions/3.8.13/lib/python3.8/subprocess.py:848: RuntimeWarning: line buffering (buffering=1) isn't supported in binary mode, the default buffer size will be used
self.stdout = io.open(c2pread, 'rb', bufsize)
```
@mitsuhiko has confirmed this fixes this warning ^