Another take on Qt6 support

[nbbrooks]

Temporarily disabled deprecation check due to other upstream deprecations. Will remove before merging

Description

Support Qt5 and/or Qt6

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

❌ Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 46.29%. Comparing base (848c062) to head (0ffd828).

Files with missing lines	Patch %	Lines
...eit_setup_framework/src/xml_syntax_highlighter.cpp	0.00%	2 Missing ⚠️
..._setup_srdf_plugins/src/collision_linear_model.cpp	0.00%	2 Missing ⚠️
..._setup_srdf_plugins/src/collision_matrix_model.cpp	0.00%	2 Missing ⚠️
...tup_srdf_plugins/src/default_collisions_widget.cpp	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3707      +/-   ##
==========================================
+ Coverage   46.24%   46.29%   +0.05%     
==========================================
  Files         726      726              
  Lines       59483    59491       +8     
  Branches     7624     7625       +1     
==========================================
+ Hits        27504    27533      +29     
+ Misses      31813    31791      -22     
- Partials      166      167       +1     

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