Please consider a version bump to `v0.0.6`!

Hi @btaba @kevinzakka ! Thank you for creating and open sourcing this amazing project.

The [`mujoco_playground` wheel on PyPI](https://pypi.org/project/playground/#history) was last updated in June 2025 (v0.0.5), and there seems to have been numerous important updates and fixes—like the compatibility of `train_rsl_rl.py` with the latest version of `rsl-rl-lib` (https://github.com/google-deepmind/mujoco_playground/issues/217).

Even though we have the option of installing from source, an average beginner (like me yesterday :D) may not realize there are undue updates until they dig through the Issues. So I just wanted to ask if you could consider bumping the version to v0.0.6! Thank you.