Use pyinstaller 4.7 on windows binary build

.github/workflows/release_win.yml

@@ -24,7 +24,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip setuptools
         pip install -r requirements.txt
-        pip install PyInstaller==4.5.1
+        pip install PyInstaller==4.7
     - name: Build binary
       run: |
         pyinstaller --onefile -n nanovna-saver.exe nanovna-saver.py