Changes steps in test_environments.py from 200 to 100 to prevent triggering timeout (#417)

# Description

Reduces the number of steps in `test_environments.py` to prevent timeout
at 600s

Fixes #404 

## Type of change

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applicable. -->

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

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./orbit.sh --format`
- [ ] 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 run all the tests with `./orbit.sh --test` and they pass
- [ ] 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

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source/extensions/omni.isaac.orbit_tasks/test/test_environments.py

@@ -62,7 +62,7 @@ class TestEnvironments(unittest.TestCase):
         for task_name in self.registered_tasks:
             print(f">>> Running test for environment: {task_name}")
             # check environment
-            self._check_random_actions(task_name, use_gpu, num_envs, num_steps=200)
+            self._check_random_actions(task_name, use_gpu, num_envs, num_steps=100)
             # close the environment
             print(f">>> Closing environment: {task_name}")
             print("-" * 80)
@@ -76,7 +76,7 @@ class TestEnvironments(unittest.TestCase):
         for task_name in self.registered_tasks:
             print(f">>> Running test for environment: {task_name}")
             # check environment
-            self._check_random_actions(task_name, use_gpu, num_envs, num_steps=200)
+            self._check_random_actions(task_name, use_gpu, num_envs, num_steps=100)
             # close the environment
             print(f">>> Closing environment: {task_name}")
             print("-" * 80)