fix move_group capabilities loading

[todoubaba]

Description

Fix loading multi planners capabilities

Checklist

• Required by CI: Code is auto formatted using clang-format
• Extend the tutorials / documentation reference
• Document API changes relevant to the user in the MIGRATION.md notes
• Create tests, which fail without this PR reference
• Include a screenshot if changing a GUI
• While waiting for someone to review your request, please help review another open pull request to support the maintainers

[sjahr]

@todoubaba Thanks for the fix! To make CI happy please run pre-commit to format the code

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.02 🎉

Comparison is base (b0f0f68) 50.50% compared to head (2c83021) 50.51%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2270      +/-   ##
==========================================
+ Coverage   50.50%   50.51%   +0.02%     
==========================================
  Files         386      386              
  Lines       31732    31732              
==========================================
+ Hits        16022    16026       +4     
+ Misses      15710    15706       -4     

see 2 files with indirect coverage changes

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[JafarAbdi]

lgtm. This doesn't fix the issue linked, though! That one should be handled from the python side!