Fix Windows build: add missing PyQt6.sip hidden import

.gitea/workflows/build-windows.yaml

@@ -23,7 +23,7 @@ jobs:
 
       - name: Build Executable
         run: |
-          wine pyinstaller --onefile --windowed --hidden-import=pkgutil --name TeletextEditor_Windows.exe --paths src --add-data "app_icon.png;." --icon=app_icon.ico src/main.py
+          wine pyinstaller --onefile --windowed --hidden-import=pkgutil --hidden-import=PyQt6.sip --name TeletextEditor_Windows.exe --paths src --add-data "app_icon.png;." --icon=app_icon.ico src/main.py
 
       - name: Upload Artifact
         uses: actions/upload-artifact@v3

build_app.py

@@ -28,6 +28,7 @@ def build():
         "--onefile",
         "--windowed",
         "--hidden-import=pkgutil",
+        "--hidden-import=PyQt6.sip",
         "--paths", "src",
         f"--add-data=app_icon.png{sep}.",
         "src/main.py"