correct handling of vulkan dependency

[AndreyMlashkin]

Specify library name and version: qt/5.15.2

This is also a good place to share with all of us why you are submitting this PR (specially if it is a new addition to ConanCenter): is it a dependency of other libraries you want to package? Are you the author of the library? Thanks!

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[ghost]

I detected other pull requests that are modifying qt/5.x.x recipe:

• add qt5 network module test #6072
• Add qt5 x11extras module retry [duplicate of 6030] #6070
• add qt5::x11extras module #6030

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[jgsogo]

Sorry, I need to stop this PR. We are running some maintenance in the CI... I'll trigger it again later (tomorrow). Sorry for the inconvenience.

[uilianries]

Hello, the current Hook error should be fixed by conan-io/hooks#315.

[AndreyMlashkin]

@uilianries @SpaceIm @jgsogo, please approve

[conan-center-bot]

All green in build 5 (3861a179a539af8b890e015b643efd636a227cc2):

• qt/5.15.2@:
  All packages built successfully! (All logs)