Remove Cone shape from particle emitter

[iche033]

🦟 Bug fix

Summary

Similar to gazebosim/sdformat#1434, let's only add cone shape to particle emitters when there is support for it.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.33%. Comparing base (3eae409) to head (5084179).
Report is 15 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #446      +/-   ##
==========================================
+ Coverage   98.19%   98.33%   +0.13%     
==========================================
  Files          27       27              
  Lines        1166     1202      +36     
==========================================
+ Hits         1145     1182      +37     
+ Misses         21       20       -1     

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