Install pkg-config.

Author: BenjaminRodenberg

.github/workflows/precice-2.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Install Dependencies
         run: |
           apt-get -qq update
-          apt-get -qq install python3-venv git
+          apt-get -qq install python3-venv git pkg-config
           rm -rf /var/lib/apt/lists/*
       - name: Create venv
         run: |