Fix wrong rename of set_start_state in 63e0c3a

[JensVanhooydonck]

Description

In 63e0c3a the name of set_start_state was changed to set_goal_state.

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (73f4551) 50.40% compared to head (871e448) 50.81%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2497      +/-   ##
==========================================
+ Coverage   50.40%   50.81%   +0.42%     
==========================================
  Files         391      392       +1     
  Lines       31982    32154     +172     
==========================================
+ Hits        16117    16336     +219     
+ Misses      15865    15818      -47     

see 7 files with indirect coverage changes

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[sjahr]

Oh sorry, thanks for fixing it!

[peterdavidfagan]

Thanks @JensVanhooydonck and @sjahr.