fix mismatched array sizes during concatenation after gr00t update.

[gene-su]

Running policy_inference.py produced the following error:

Traceback (most recent call last):
  File "/home/gene/leisaac/scripts/evaluation/policy_inference.py", line 240, in <module>
    main()
  File "/home/gene/leisaac/scripts/evaluation/policy_inference.py", line 207, in main
    actions = policy.get_action(obs_dict).to(env.device)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/gene/leisaac/source/leisaac/leisaac/policy/service_policy_clients.py", line 80, in get_action
    concat_action = np.concatenate(
                    ^^^^^^^^^^^^^^^
ValueError: all the input arrays must have same number of dimensions, but the array at index 0 has 2 dimension(s) and the array at index 1 has 3 dimension(s)

[EverNorif]

hi @gene-su, could you describe which commit of GR00T this issue appeared in?
Our code was validated on this commit, and it’s possible that recent updates to GR00T have caused this problem.

[gene-su]

Thanks for the quick response. I’m using this commit (currently the latest)

[EverNorif]

@gene-su looks good to me, thanks for your contribution.