Update blank.yml

.github/workflows/blank.yml

@@ -40,6 +40,17 @@ jobs:
           sudo apt-get install libsasl2-dev libsdl2-dev libseccomp-dev libsnappy-dev libssh-dev
           sudo apt-get install libvde-dev libvdeplug-dev libvte-2.91-dev libxen-dev liblzo2-dev
           sudo apt-get install valgrind xfslibs-dev
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/ppa -y
+          sudo apt update
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
+          sudo apt update
+          sudo apt install gcc-13 g++-13
+          version=$(apt-cache pkgnames | sed -nr 's/^gcc-(([0-9]+\.?)+)$/\1/p' \
+                             | sort -n | tail -n1)
+          echo "The latest available GCC version: $version"
+          sudo apt-get install gcc-$version g++-$version
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-$version 60 \
+          --slave   /usr/bin/g++ g++ /usr/bin/g++-$version
           wget -q "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage" -O linuxdeploy ; chmod a+x linuxdeploy
           wget -q "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage" -O appimagetool ; chmod a+x appimagetool
           mkdir -p lucas/usr/lib/