[x] Asked team if this is a good time for a release
[x] There are no changes to be ported from the previous major version
[x] No PRs targeted at this major version are close to getting in
[x] Bumped minor for new features, patch for bug fixes
[x] 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.
🎈 Release
Preparation for 13.8.0 release.
Comparison to 13.7.0: https://github.com/gazebosim/sdformat/compare/sdformat13_13.7.0...sdf13
Needed by https://github.com/gazebosim/gz-sim/pull/2452
Checklist
Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining
Signed-off-bymessages.