Bump rendering dep to 8

[iche033]

🎉 New feature

Summary

Bump main to depend on rendering8

gazebo-tooling/release-tools#853

Related PRs:

• Bump sensors8 to depend on rendering8 gazebo-tooling/gazebodistro#124
• gz-sensors8: depend on gz-rendering8 osrf/homebrew-simulation#2125

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• 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.

[iche033]

@osrf-jenkins run tests please

[codecov]

Codecov Report

Merging #286 (5b86b66) into main (920751a) will not change coverage.
The diff coverage is n/a.

❗ Current head 5b86b66 differs from pull request most recent head a1289bb. Consider uploading reports for the commit a1289bb to get more accurate results

@@           Coverage Diff           @@
##             main     #286   +/-   ##
=======================================
  Coverage   71.85%   71.85%           
=======================================
  Files          37       37           
  Lines        4690     4690           
=======================================
  Hits         3370     3370           
  Misses       1320     1320           

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[iche033]

This PR is ready. Ubuntu Focal / Jammy, Homebrew, Windows CI builds should all be working