Use gcc 11

Signed-off-by: Aditya Pande <[email protected]>

.github/workflows/bazelized_drake_ros.yml

@@ -49,7 +49,7 @@ jobs:
           sudo apt install python3 python3-toposort
           sudo rm -rf /var/lib/apt/lists/*
       - name: Use GCC 11, until GCC 13 works with drake's clang
-        run: sudo apt purge gcc-13 g++-13 gcc-12 g++-12 && sudo apt install gcc-11 g++-11
+        run: sudo apt purge gcc-13 g++-13 gcc-12 g++-12 && sudo apt install gcc-11 g++-11 && sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 100 --slave /usr/bin/g++ g++ /usr/bin/g++-11
         working-directory: drake_ros
       - name: Download Drake
         run: bazel build @drake//:module_py