[EMSUSD-3999] Duplicating prims using Ctrl+D does not refresh outliner

**Describe the bug**
With a stage loaded, when users duplicate a prim, Maya's outliner doesn't refresh to show the new prim

**Steps to reproduce**
1. New Maya scene
2. Load a USD stage into a UsdProxyNode
3. Expand outliner to reveal a prim
4. Select the prim in the outliner
5. Use Ctrl+D to duplicate
6. The prim is duplicated but outliner does not refresh

**Expected behavior**
Outliner refresh to show the new prim

**Attachments**

**Specs (if applicable):**
- Linux Rocky 9
- Maya 2026.3
- Maya USD tag v0.36.0 nad v0.37.0
- Pixar USD version 25.11

**Additional context**