Remove `master` dependency overrides from craft config

Summary

Back before the KF6 release, I set the craft.ini file to explicitly require master versions of some dependencies which did not have appropriate versions available. (!631 (merged))

Now that those are released, we should remove those overrides (also because they break the build!)

Test Plan

Tested the pipeline on a private branch: https://invent.kde.org/network/kdeconnect-kde/-/pipelines/621529

The pipeline run on the PR should also pass.