Use a newer cx_Freeze

.github/workflows/bundle_windows.yml

@@ -41,8 +41,7 @@ jobs:
         python -m pip install --upgrade pip
         pip install -r requirements.txt
         pip install -e .
-        # Pinned for now until I figure out why it freaks out on bundling PySide6
-        pip install cx_freeze==6.15.15
+        pip install cx_freeze
 
     - name: Bundle with cx_Freeze
       shell: bash