ci/android: add sudo to EPHEMERAL deps for debian/x86_64_test-android.sh

The ./tools/buildutils/build_packages.sh script used by the
android-cuttlefish project built in debian/x86_64_test-android.sh uses
sudo, so install that as an EPHEMERAL dependency.

Also set SUDO_FORCE_REMOVE=yes when removing sudo to avoid some errors.

Reviewed-by: Eric Engestrom <None>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30895>

.gitlab-ci/container/debian/x86_64_test-android.sh

@@ -19,6 +19,7 @@ EPHEMERAL=(
    debhelper-compat
    dpkg-dev
    ninja-build
+   sudo
    unzip
 )
 
@@ -118,6 +119,7 @@ usermod -a -G kvm,cvdnetwork root
 
 rm -rf "/${ndk:?}"
 
+export SUDO_FORCE_REMOVE=yes
 apt-get purge -y "${EPHEMERAL[@]}"
 
 . .gitlab-ci/container/container_post_build.sh