Build pyinstaller in a dedicated venv (#6)

Author: lloesche

.github/workflows/build_and_publish.yml

@@ -59,6 +59,9 @@ jobs:
       - name: Build binary
         id: pyinstaller
         run: |
+          python3 -m venv venv
+          source venv/bin/activate
+          pip install -r requirements.txt
           pip install pyinstaller
           pyinstaller --clean --noconfirm --log-level=WARN --distpath=dist --workpath=build cloud2sql.spec
           if [ "${{ github.ref_type }}" = tag ]; then