Prepare for 10.0.0~pre3 Release

[azeey]

🎈 Release

Preparation for 10.0.0~pre3 release.

Comparison to 10.0.0-pre2: gz-msgs10_10.0.0-pre2...gz-msgs10

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

Merging #380 (ebab1a9) into gz-msgs10 (3aa9224) will not change coverage.
The diff coverage is n/a.

❗ Current head ebab1a9 differs from pull request most recent head a985c59. Consider uploading reports for the commit a985c59 to get more accurate results

@@            Coverage Diff             @@
##           gz-msgs10     #380   +/-   ##
==========================================
  Coverage      97.26%   97.26%           
==========================================
  Files             27       27           
  Lines           1169     1169           
==========================================
  Hits            1137     1137           
  Misses            32       32