The last version does not install the latest 1.11

[LucaGallinari]

As you can see even on the CI:
https://github.com/Sylius/PluginSkeleton/runs/5608578798?check_suite_focus=true#step:16:177

Locally we could upgrade to Sylius 1.11.2 only by running:

composer require sylius/sylius ^1.11.2

Otherwise it will always install 1.11.0.
It seems to be related to some conflicts with symfony/dependency-injection and symfony/framekwork-bundle. If you launch the command above it will downgrade these to previous versions.