fix(xarm_gazebo): update rosdep keys for ROS Jazzy compatibility

[Vinayak-5349]

Summary

Fixes rosdep install failure when building xarm_gazebo on ROS 2 Jazzy / Ubuntu 24.04 (Noble).

Problem

Running rosdep install --from-paths . --ignore-src --rosdistro jazzy fails with:

• ERROR: Cannot locate rosdep definition for [sdformat14]
• ERROR: Cannot locate rosdep definition for [gz-sim8]

This occurs because raw APT package keys (sdformat14, gz-sim8) are not defined in rosdep/base.yaml or 'rosdistro/jazzy
/distribution.yaml' for ROS Jazzy.

Solution

Updated package.xml dependencies to use official ROS 2 Jazzy vendor wrapper keys (ros_gz, gz_sim_vendor, sdformat_urdf), allowing rosdep to resolve system dependencies cleanly without requiring --skip-keys.

Test Matrix

• OS: Ubuntu 24.04 LTS (Noble)
• ROS Version: ROS 2 Jazzy Jalisco
• Verification: rosdep install succeeds without errors on a clean workspace.