Pin Navigation2 demo to humble-2024.10.0 (#197)

The current dockerfile of the navigation2 demo depends on space-ros:latest.
This may prevent the image from building if we release a new version of Space
ROS but we have not yet adapted the Navigation 2 demo as needed, breaking the
build.

This commit pins the version of the Navigation 2 demo to the latest version of
Space ROS that we have tested it with (humble-2024.10.0). We modify both the
Dockerfile and the build script so that the result is the same (and thus
unsurprising) no matter how the image is built.

navigation2/Dockerfile

@@ -20,7 +20,7 @@
 #   VERSION         - The version of Space ROS (default: "preview")
 #   SPACE_ROS_IMAGE - The base Space ROS image to build on
 
-ARG SPACE_ROS_IMAGE=osrf/space-ros:latest
+ARG SPACE_ROS_IMAGE=osrf/space-ros:humble-2024.10.0
 
 FROM ${SPACE_ROS_IMAGE}
 

navigation2/build.sh

@@ -17,7 +17,7 @@ echo ""
 docker build -t $ORG/$IMAGE:$TAG \
     --build-arg VCS_REF="$VCS_REF" \
     --build-arg VERSION="$VERSION" \
-    --build-arg SPACE_ROS_IMAGE="${SPACE_ROS_IMAGE:-osrf/space-ros:latest}" \
+    --build-arg SPACE_ROS_IMAGE="${SPACE_ROS_IMAGE:-osrf/space-ros:humble-2024.10.0}" \
     .
 
 echo ""