CMake generator reports issues when qdsVersion is not defined

Steps to reproduce:
1. Open the project without qdsVersion defined in the qmlproject file (example project attached) example_mpu_project.zip
2. Enable CMake generator (File -> Export Project -> Enable CMake Generator)
3. Close the project
4. Open the project again
5. Check issues pane:

Setting the:

qdsVersion: "4.5"

in the qmlproject file suspends these issues. However, the project can be generated outside of QDS (e.g. in the Figma to Qt).

Expected behavior:
Don't report issues if qdsVersion is not defined.