Version change and UI update for ConcurrencyContainer Handling

[dcconner]

The iron, rolling, and ros2-devel branches have the concurrency container and state id changes as version 3.0.0

For consistency you need version 4.0+ of the UI (flexbe_app and soon the flexbe_webui) and 3.0+ of the flexbe_behavior_engine

See discussion in FlexBE/flexbe_app#88 for more details

[dcconner]

Note that these changes are now released in iron, jazzy, rolling distributions
There is now a https://github.com/flexbe/flexbe_webui as an alternate UI that supports this change as well.
Please give that UI a try.

A separate issue with concurrency containers #22 was found, and that fix is now pushed to the ros2-devel branch with merge into iron/jazzy/rolling releases expected by July 2024.

[dcconner]

As discussed in #22, I have now released version 4.0.0 of flexbe_behavior_engine that makes a change to how sync messages between onboard and OCS are handled, along with some changes to how preemption and on_exit is called.
This should be transparent unless you are using messages that changed from full path string to int32 state id. This breaks compatability with the older flexbe_app, use the flexbe_webui (main branch) instead.