Try fixing test failure with RTLD_NODELETE

[scpeters]

🦟 Bug fix

Alternative to #1033

Summary

From #1033:

The INTEGRATION_load_unload test crashes with ogre 1.x. The tests checks to see if the render engine can be loaded and unloaded in a thread (which is how gz sim runs the render engine). The crash happens on ubuntu 24.04 with the system debs, see #1007 for more info.

Instead of the approach from #1033, this uses the suggestion from #1033 (comment)

To test (also from #1033)

The INTEGRATION_load_unload test should now pass with ogre 1.x on Ubuntu 24.04 with the system ogre debs:

GZ_ENGINE_TO_TEST=ogre  ./build/gz-rendering9/bin/INTEGRATION_load_unload

gz-sim should no longer crash on exit:

gz sim -v 4 -r --iterations 5 -s sensors_demo.sdf --render-engine ogre

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.

[scpeters]

we will use #1033