Prepare for 2.6.2 Release

[azeey]

🎈 Release

Preparation for 2.6.2 release.

Comparison to 2.6.1: https://github.com/gazebosim/gz-physics/compare/ignition-physics2_2.6.1...ign-physics2

Checklist

• [ ] Asked team if this is a good time for a release
• [ ] There are no changes to be ported from the previous major version
• [ ] No PRs targeted at this major version are close to getting in
• [ ] Bumped minor for new features, patch for bug fixes
• [ ] Updated changelog
• [ ] Updated migration guide (as needed)
• [ ] Link to PR updating dependency versions in appropriate repository in gazebo-release (as needed):

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.

[azeey]

Homebrew failed while trying to build dart 6.10. @scpeters is this because we're on newer versions of macOS now than before?

[scpeters]

Homebrew failed while trying to build dart 6.10. @scpeters is this because we're on newer versions of macOS now than before?

it's probably related to urdfdom 4.0.0; we probably need the patch from https://github.com/dartsim/dart/pull/1779 in our dartsim@6.10.0 formula