add apt-python

Author: lresende

.github/workflows/build.yml

@@ -103,6 +103,7 @@ jobs:
       - name: Downgrade GCC to version 12
         run: |
           sudo apt-get install -y gcc-12 g++-12
+          sudo apt-get install -y python3-apt
           sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-12 100
           sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-12 100
           gcc --version