Add cx_Freeze build dependencies to build-test workflow

- Included installation of pycparser and cffi to ensure cx_Freeze build dependencies are met.
- This update enhances the build process for the backend application.

.gitea/workflows/build-test.yml

@@ -56,6 +56,9 @@ jobs:
             - name: Build Backend (Wheel)
               run: task build:wheel
 
+            - name: Ensure cx_Freeze build dependencies
+              run: poetry run pip install pycparser cffi
+
             - name: Build Electron App (Linux)
               run: pnpm run dist:linux-x64