Broken link to Vulkan RenderingDevice implementation

[mcendu]

Your Godot version: 4.2

Issue description: The link to the Vulkan RenderingDevice implementation is broken. The broken link is introduced by commit d0286df.

URL to the documentation page: https://docs.godotengine.org/en/stable/contributing/development/core_and_modules/internal_rendering_architecture.html

If you know how to fix the issue you are reporting please
consider opening a pull request. We provide a tutorial on
using git here: https://docs.godotengine.org/en/stable/community/contributing/pr_workflow.html,
writing documentation at https://docs.godotengine.org/en/stable/community/contributing/docs_writing_guidelines.html
and contributing to the class reference here: https://docs.godotengine.org/en/stable/community/contributing/updating_the_class_reference.html

[skyace65]

This has already been fixed by #8977, it just needs to be cherry picked to the 4.2 branch.