Relax version requirements for several PyQt6 components.

--- qt/pyproject.toml.orig	2026-09-10 08:39:23 UTC
+++ qt/pyproject.toml
@@ -33,11 +33,11 @@ qt = [
   "anki-audio==0.2.3; sys.platform == 'win32' or sys.platform == 'darwin'",
 ]
 qt = [
-  "pyqt6==6.11.0",
-  "pyqt6-qt6==6.11.2",
-  "pyqt6-webengine==6.11.0",
-  "pyqt6-webengine-qt6==6.11.2",
-  "pyqt6_sip==13.12.0",
+  "pyqt6",
+  "pyqt6-qt6",
+  "pyqt6-webengine",
+  "pyqt6-webengine-qt6",
+  "pyqt6_sip",
 ]
 qt68 = [
   "pyqt6==6.8.0",