Checkout portaudio submodule in Github codeql check

Author: npostavs

.github/workflows/codeql-analysis.yml

@@ -27,6 +27,8 @@ jobs:
     steps:
     - name: Checkout repository
       uses: actions/checkout@v2
+    - name: Checkout portaudio submodule
+      run: git submodule update --init -- libs/portaudio
 
     - name: Install Qt on Linux
       run: |