Bump MuJoCo library version to 3.4.0

[saikishor]

This PR bumps the mujoco version to 3.4.0.

The idea is once the CI is good here, I will also bump the mujoco_vendor and make releases

Closes: #22

[saikishor]

@eholum @eholum-nasa The failing build is due to the removal of InjectNoise method in 3.1.4 to have determinisim in the simulator, however, if needed, the user can add noise manually to the sensors via XML tags : https://mujoco.readthedocs.io/en/3.1.4/changelog.html#general. However, it is back later

What should we do in this case?

Weirdly, it is failing now

P.S. I found the breaking API in version 3.3.7

[saikishor]

I would like to take a decision before any further syncs

[saikishor]

I later checked the codebase and realized that there was a commit introduced in 3.3.7 version of mujoco : google-deepmind/mujoco@401bf43#diff-3dc22ceeebd71304c41d349c6d273bda172ea88ff49c772dbdcf51b9b19bbd33R2943 has introduced a undocumented API break, but setting it to -1 everything works as usual. I'll open a PR to update their documentation

[saikishor]

I've proposed to update their changelog : google-deepmind/mujoco#2996

[saikishor]

@eholum-nasa everything good now ;)