CI: add --no-install-recommends

Author: mgeier

.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
       if: startsWith(matrix.os, 'ubuntu')
       run: |
         sudo apt-get update
-        sudo apt-get install ${{ matrix.jack }}
+        sudo apt-get install --no-install-recommends ${{ matrix.jack }}
     - name: Install JACK on macOS
       if: startsWith(matrix.os, 'macos')
       run: |