Build: Bump aqt from 3.1.12 to 3.1.15 (Automated PR)

[github-actions[bot]]

This automated Pull Request updates the used aqt version to version 3.1.15.

This PR was opened by the workflow Bump dependencies (create-prs)

CHANGELOG: SKIP

[ann0see]

I believe if it compiles it's ok? This may need us to quickly check the change log

[softins]

Looks ok to me. Change log here.

3.1.13 added support for Qt 6.6.3 and for Linux on arm64. 3.1.14 and 3.1.15 were just bug fixes.

[softins]

I also did a diff between those versions of aqtinstall, and all looked sensible.

[ann0see]

Ok. Then I'm also approving this