Add unit test with fitaabb=true

[ft-lab]

Is this a new feature, an improvement, or a change to existing functionality?

Improvement

Feature Description

The problem of using fitaabb=true in MuJoCo itself has been fixed on the MuJoCo side.
Add this unit test with fitaabb=true in mujoco-usd-converter.

• Check for fixes when using fitaabb=true in MuJoCo.
• Update the mujoco version in project.toml to the corrected version.
• unit tests: Create a file in geoms_fitting.xml with "fitaabb=false" set to true and add the unit test code.

Additional context or alternatives

Since fitaabb support is already implemented in mujoco-usd-converter, the unit tests should work correctly without any new code.
Here we will only add the unit test xml and unit test code.

Code of Conduct

• I agree to follow mujoco-usd-converter Code of Conduct
• I have searched the open issues and have found no duplicates