Unpin timm and pyarrow (#310)

* Remove explicit pin on timm

Since segmentation-models-pytorch=0.3.3 requires timm=0.9.2. Xref conda-forge/segmentation-models-pytorch-feedstock#22 (comment)

* Add back osx-64 and osx-arm64 platforms

* Remove explicit pin on pyarrow

Use whatever is set by lancedb and pylance. Currently pylance=0.14.1 pulls in pyarrow=14.0.2.

Author: weiji14