Prepare for 13.1.0 Release

[azeey]

🎈 Release

Preparation for 13.1.0 release.

Comparison to 13.0.0: gz-transport13_13.0.0...gz-transport13

Needed by <PR(s)>

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.70%. Comparing base (eac2e69) to head (2ea16bc).
Report is 4 commits behind head on gz-transport13.

Additional details and impacted files

@@                Coverage Diff                 @@
##           gz-transport13     #482      +/-   ##
==================================================
+ Coverage           87.69%   87.70%   +0.01%     
==================================================
  Files                  59       59              
  Lines                5704     5710       +6     
==================================================
+ Hits                 5002     5008       +6     
  Misses                702      702              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.