Correct SpawnEntity service call example

[C88-YQ]

🦟 Bug fix

Related to ros-simulation/simulation_interfaces#4

Summary

This PR updates the SpawnEntity service documentation example to match the current simulation_interfaces/srv/SpawnEntity definition.

Previously, the example passed the model path through the top-level uri:

uri: '/path/to/model.sdf'

However, simulation_interfaces/srv/SpawnEntity was updated to replace the old top-level string uri field with Resource entity_resource. As a result, the documented command no longer matches the service interface and fails when copied directly.

Backport Policy

• This is safe to backport to the following versions:
  • Jetty
  • Ionic
  • Harmonic
  • Fortress
• This should not be backported
• I am not sure
• Other (fill in yourself)

Checklist

• Signed all commits for DCO
• Added a screen capture or video to the PR description that demonstrates the fix (as needed)
• 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)
• Updated Bazel files (if adding new files). Created an issue otherwise.
• While waiting for a review on your PR, please help review another open pull request to support the maintainers
• Was GenAI used to generate this PR? If so, make sure to add "Generated-by" to your commits. (See this policy for more info.)

[azeey]

Thanks! Can we add this to the Jetty directory as well?

[C88-YQ]

Thanks for the suggestion! I’ve added it to the Jetty directory as well.