Draft: Update Ktor from 2.x.x to 3.0.0-beta-2

Let's run Ktor in CI before the full release to see if breaking changes will fail some GitLab job(s)

This is needed to fix a memory leak in Ktor when fetching assets.

Ktor early access program (EAP) is used to access the latest build with the fix.

Migrating from 2.2.x to 3.0.x

See Ktor nightly builds for the latest version