Feature request: Update LTR_retriever to v3.0.4

Hi dev team,

Please consider upgrading **LTR_retriever** from `v2.9.0` to `v3.0.4`.

Many important updates have landed since 2.9.0 (the versions are 5 years apart). See the v3.0.4 notes here:
https://github.com/oushujun/LTR_retriever/releases/tag/v3.0.4

Thanks!