Fixes noise_model initialized in direct_marl_env (#1480)

# Description

This change fixes bugs in `DirectMARLEnv` class, where previously
`_action_noise_model` and `_observation_noise_model` cannot successfully
initialized when the noise-model-cfg passed in.

## Type of change

- Bug fix (non-breaking change which fixes an issue)

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

---------
Signed-off-by: Kelly Guo <kellyg@nvidia.com>
Signed-off-by: Kelly Guo <kellyguo123@hotmail.com>
Co-authored-by: zhouhaoran <zhouhaoran@xiaomi.com>
Co-authored-by: Kelly Guo <kellyg@nvidia.com>
Co-authored-by: Kelly Guo <kellyguo123@hotmail.com>

CONTRIBUTORS.md

@@ -47,6 +47,7 @@ Guidelines for modifications:
 * Felix Yu
 * Gary Lvov
 * Giulio Romualdi
+* Haoran Zhou
 * HoJin Jeon
 * Jan Kerner
 * Jean Tampon

source/extensions/omni.isaac.lab/config/extension.toml

 [package]
 
 # Note: Semantic Versioning is used: https://semver.org/
-version = "0.27.17"
+version = "0.27.18"
 
 # Description
 title = "Isaac Lab framework for Robot Learning"

source/extensions/omni.isaac.lab/docs/CHANGELOG.rst

 Changelog
 ---------
 
+0.27.18 (2024-12-04)
+~~~~~~~~~~~~~~~~~~~~
+
+Fixed
+^^^^^
+
+* Fixed the order of the incoming parameters in :class:`omni.isaac.lab.envs.DirectMARLEnv` to correctly use ``NoiseModel`` in marl-envs.
+
+
 0.27.17 (2024-12-02)
 ~~~~~~~~~~~~~~~~~~~~
 

source/extensions/omni.isaac.lab/omni/isaac/lab/envs/direct_marl_env.py

@@ -175,13 +175,13 @@ class DirectMARLEnv(gym.Env):
         # setup noise cfg for adding action and observation noise
         if self.cfg.action_noise_model:
             self._action_noise_model: dict[AgentID, NoiseModel] = {
-                agent: noise_model.class_type(self.num_envs, noise_model, self.device)
+                agent: noise_model.class_type(noise_model, num_envs=self.num_envs, device=self.device)
                 for agent, noise_model in self.cfg.action_noise_model.items()
                 if noise_model is not None
             }
         if self.cfg.observation_noise_model:
             self._observation_noise_model: dict[AgentID, NoiseModel] = {
-                agent: noise_model.class_type(self.num_envs, noise_model, self.device)
+                agent: noise_model.class_type(noise_model, num_envs=self.num_envs, device=self.device)
                 for agent, noise_model in self.cfg.observation_noise_model.items()
                 if noise_model is not None
             }