use a dist-upgrade not just upgrade (#141)

The upgrade will skip thing that require new packages. Such as new ignition libraries which are what we're looking for going to the nightlies.
osrf · Jan 8, 2022 · 26b4288 · 26b4288
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commit 26b4288
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docker/tests/Dockerfile b/docker/tests/Dockerfile
@@ -47,7 +47,7 @@ RUN /bin/sh -c 'echo "deb http://packages.osrfoundation.org/gazebo/ubuntu-stable
 
 # Install and upgrade the latest Ignition binaries
 RUN apt-get -qq update && apt-get -q -y install \
-  ignition-garden && apt-get upgrade -y
+  ignition-garden && apt-get dist-upgrade -y
 
 # Install PCL
 RUN apt-get update \