CI: Remove superfluous step to publish Windows Qt artifacts

[PatTheMav]

Description

Removes the publish step from the Windows Qt6 build job.

Motivation and Context

Publish step was not intended to be contained in the build job and is a left-over from when the job was copied over from the main workflow.

How Has This Been Tested?

Will need testing on CI.

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.

[RytoEX]

Is it not needed so that the Qt WoA job has host components?

[PatTheMav]

Is it not needed so that the Qt WoA job has host components?

D'oh, you're right. I just spotted those two artefacts (and no others) and was confused by that.