install zbar lib

.github/workflows/ci.yml

@@ -25,6 +25,10 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
+      - name: Install zbar lib for QReader
+        if: runner.os != 'Windows'
+        run: |
+          sudo apt-get install -y libzbar0
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip