Ensure that tests pass fine with GZ_RELOCATABLE_INSTALL option enabled

[traversaro]

🦟 Bug fix

Fix tests when GZ_RELOCATABLE_INSTALL CMake option is enabled and the operating system is Windows or Linux without the install step being run.

Summary

Checklist

• 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)
• 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.

[codecov]

Codecov Report

Merging #394 (4a1a615) into gz-msgs10 (3d60486) will not change coverage.
The diff coverage is n/a.

❗ Current head 4a1a615 differs from pull request most recent head 448d107. Consider uploading reports for the commit 448d107 to get more accurate results

@@            Coverage Diff             @@
##           gz-msgs10     #394   +/-   ##
==========================================
  Coverage      97.67%   97.67%           
==========================================
  Files             27       27           
  Lines           1163     1163           
==========================================
  Hits            1136     1136           
  Misses            27       27           

[mjcarroll]

Friendly ping @traversaro, if this is ready I can review.

[traversaro]

Friendly ping @traversaro, if this is ready I can review.

Ok! For the DCO should I rebased on the latest gz-msgs10 dropping the merge and adding the DCO just on the latest rebased commit?

[mjcarroll]

Ok! For the DCO should I rebased on the latest gz-msgs10 dropping the merge and adding the DCO just on the latest rebased commit?

Rebasing generally fixes it, but I can also override it as I have done here, since it's the merge commit causing the issue.