### What problem does this PR solve?
support xinference rerank model
#1455
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix ragflow may encounter an OOM (Out Of Memory) when there are a lot of
conversations.
#1288
### Type of change
- [ ] Bug Fix (non-breaking change which fixes an issue)
Co-authored-by: zhuhao <zhuhao@linklogis.com>
### What problem does this PR solve?
issue #991
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
---------
Co-authored-by: KevinHuSh <kevinhu.sh@gmail.com>
### What problem does this PR solve?
#724#162
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: add rerank models to the project #724#162
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
