tests/docker: Update VirGL git repository URL

freedesktop.org is moving to a GitLab instance,
use the new url.

- https://www.fooishbar.org/blog/gitlab-fdo-introduction/
- https://gitlab.freedesktop.org/freedesktop/freedesktop/-/wikis/home



Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200212202709.12665-2-philmd@redhat.com>
Message-Id: <20200316172155.971-3-alex.bennee@linaro.org>

tests/docker/dockerfiles/debian-amd64.docker

@@ -27,7 +27,7 @@ RUN apt update && \
         libegl1-mesa-dev \
         libepoxy-dev \
         libgbm-dev
-RUN git clone https://anongit.freedesktop.org/git/virglrenderer.git /usr/src/virglrenderer && \
+RUN git clone https://gitlab.freedesktop.org/virgl/virglrenderer.git /usr/src/virglrenderer && \
     cd /usr/src/virglrenderer && git checkout virglrenderer-0.7.0
 RUN cd /usr/src/virglrenderer && ./autogen.sh && ./configure --with-glx --disable-tests && make install