Remove a few extra zeros from some sdf files

[nkoenig]

🦟 Bug fix

Summary

Just removing a few extra zeros from a few SDF files.

Checklist

• [x] Signed all commits for DCO
• [ ] Added tests
• [ ] Updated documentation (as needed)
• [ ] Updated migration guide (as needed)
• [ ] Consider updating Python bindings (if the library has them)
• [x] codecheck passed (See contributing)
• [x] 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.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 65.02%. Comparing base (5a76b28) to head (339e681). Report is 15 commits behind head on gz-sim7.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## gz-sim7 #2426 +/- ## =========================================== + Coverage 64.72% 65.02% +0.30% =========================================== Files 357 361 +4 Lines 29160 29624 +464 =========================================== + Hits 18874 19264 +390 - Misses 10286 10360 +74 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.