Enable display for dlc-live-test in CI

Update .github/workflows/testing.yml to run the Model Benchmark Test with --display instead of --nodisplay. This allows dlc-live-test to run tests that require a display (e.g., visual/benchmarking checks) in the CI workflow.

Author: C-Achard

.github/workflows/testing.yml

@@ -69,7 +69,7 @@ jobs:
         shell: bash
 
       - name: Run Model Benchmark Test
-        run: uv run dlc-live-test --nodisplay
+        run: uv run dlc-live-test --display
 
       - name: Run DLC Live Unit Tests
         run: uv run pytest