fix switch case fall through warning

[ijnek]

🦟 Bug fix

Bug

Warning is raised when compiling on Ubuntu Jammy using g++11.

/home/ijnek/ignition/garden/src/ign-common/graphics/src/SVGLoader.cc:584:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
  584 |         while (i < count)
      |                ~~^~~~~~~
/home/ijnek/ignition/garden/src/ign-common/graphics/src/SVGLoader.cc:602:7: note: here
  602 |       case 'Z':
      |       ^~~~
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Summary

Simply add a break to the switch case statement as the fallthrough seems unintended.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• 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.

[ijnek]

I'm going to guess DCO is failing because it didn't re-run the DCO test when I changed the PR base branch from ign-common4 to main, going to push a commit message change to see if that's the issue.

[codecov]

Codecov Report

Merging #345 (8e8de94) into main (153ce13) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #345   +/-   ##
=======================================
  Coverage   91.66%   91.66%           
=======================================
  Files           1        1           
  Lines          48       48           
=======================================
  Hits           44       44           
  Misses          4        4           

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