Add apt-update to integration test

Author: samanklesaria

.github/workflows/integration-test.yml

@@ -23,6 +23,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
+        sudo apt-get update
         sudo apt install -y -qq libavfilter-dev libavdevice-dev
     - name: Install packages
       run: |