Pin cx_freeze version

.github/workflows/bundle_windows.yml

@@ -38,7 +38,8 @@ jobs:
         python -m pip install --upgrade pip
         pip install -r requirements.txt
         pip install -e .
-        pip install cx_freeze
+        # Pinned for now until I figure out why it freaks out on bundling PySide6
+        pip install cx_freeze==6.15.15
 
     - name: Bundle with cx_Freeze
       shell: bash