install dev requirements for pyinstaller action

Author: clstaudt

.github/workflows/pyinstaller-build.yml

@@ -19,7 +19,8 @@ jobs:
       with:
         python-version: 3.10.7
 
-    - run: pip install -r requirements.txt pyinstaller
+    - run: pip install -r requirements.txt
+    - run: pip install -r requirements-dev.txt
     - run: python scripts/build_app.py
     # Optionally verify that it works (provided that it does not need user interaction)
     #- run: ./dist/your-code/your-code