migrate pyqt5 to pyside6

shared/tests/test_scene3d_contracts.py

@@ -464,6 +464,8 @@ def test_the_contract_layer_imports_without_qt_or_opengl():
     Checked in a **fresh interpreter**: asking ``sys.modules`` in this process only
     proves what some earlier test happened to import (it failed once the studio tests
     painted a widget before this file ran, which says nothing about the contract layer).
+    The Qt name checked is the binding the app uses (PySide6), which is the only one that
+    could be pulled in — the earlier spelling named PyQt5, before the migration.
     """
     import subprocess
     import sys
@@ -471,7 +473,7 @@ def test_the_contract_layer_imports_without_qt_or_opengl():
     script = (
         "import sys;"
         "import orisys_app_shared.scene3d.contracts as c;"
-        "print(','.join(m for m in ('OpenGL', 'PyQt5', 'cv2') if m in sys.modules))"
+        "print(','.join(m for m in ('OpenGL', 'PySide6', 'cv2') if m in sys.modules))"
     )
     result = subprocess.run(
         [sys.executable, "-c", script],