Moves curriculum manager call to after scene reset

[jsmith-bdai]

Description

Moves the curriculum manager compute method to come after scene.reset() has been called to allow curriculum managers to set information related to external wrenches on an articulation. Previously, any attempt to set the external wrench buffers will be cleared after calling scene.reset() which calls the articulation reset.

Fixes # (issue)

Type of change

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

Screenshots

Checklist

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

[Copilot]

Pull Request Overview

This PR fixes a bug related to the curriculum manager call by moving its compute method to execute after the scene reset.

• Removed the curriculum manager call before scene.reset().
• Added the curriculum manager call after scene.reset() to prevent the external wrench buffer from being cleared.