Missing tag for 0.2.8 and 0.2.9

Context: bumping the version of `oryx` in [nixpkgs](https://github.com/NixOS/nixpkgs/), currently 0.2.7.

The latest release/tag on GitHub is 0.2.7 while on Pypi the version is 0.2.9.
For now, I plan to use https://github.com/jax-ml/oryx/commit/81fd0d7a4cda681ff86e7e0fb89a988020e4cb16.

Could you please tag the corresponding commits on this repo ?

Thanks a lot in advance

Start by comparing the GitHub tags and PyPI versions for oryx 0.2.7, 0.2.8, and 0.2.9, using the referenced commit as an entry point. Determine which repository commits correspond to the two missing releases and verify that the tags are absent. Done means the 0.2.8 and 0.2.9 tags identify the corresponding commits.

Written by the indexing model from the issue text.