model: update DeFlow&SeFlow&FastFlow3D checkpoints.

Sync with this zenodo record: https://zenodo.org/records/13744999
with deflow_best updated on sensor height robust.

deflow_best.ckpt

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+version https://git-lfs.github.com/spec/v1
+oid sha256:132ecfdbbcfa7f04fecd1441b8e086403496c81535b8341c783d312cfc26451e
+size 82885385

demo_data.zip

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+version https://git-lfs.github.com/spec/v1
+oid sha256:2038df81fad8a78975eff20604c4a90dd267ab37f5cebe03d717e77f08ffd5ca
+size 612729967

fastflow3d_best.ckpt

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+version https://git-lfs.github.com/spec/v1
+oid sha256:4920e3e0ab40093efec61f37cc30d68ae1b370373223870e59c6ad6f6a7ce1cb
+size 82016185

seflow_best.ckpt

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+version https://git-lfs.github.com/spec/v1
+oid sha256:9040ff180e925a8b0215a08ec470b97c6197aa8ceddf0f65f56932506b5ea9aa
+size 82887101

waymo_map.tar.gz

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+version https://git-lfs.github.com/spec/v1
+oid sha256:c4890288a33e618d5d36a9b44c2bbad8473cbd54f481e270d766d482b7fbb239
+size 68722730