Isaac tutorial is not compatible with main branch dependencies

[henningkayser]

Since moveit/moveit2#3081 we don't have a supported build of the main branches of moveit2 and moveit2_tutorials in the Humble distro. At the same time, the main branch of moveit2_tutorials is not officially targeting the Humble distro anymore. That's the purpose of the humble branch. As a result, the current version of the Dockerfile inside the isaac tutorial does not work anymore (the image tag is outdated), but also updating the sources to build moveit2_tutorials on more recent images fails due to incompatible dependencies (moveit2_tutorial has dependencies that conflict with ROS 2 Humble at this point). I would propose migrating the isaac tutorials to the humble branch and discontinuing the main branch version until isaac_ros has support for the more recent ROS distros Jazzy or Rolling.