Following discussion in https://github.com/scikit-learn-contrib/scikit-learn-extra/issues/26 we should build wheels for scikit-learn-extra. This should be a bit easier now that CI was migrated to Azure pipelines (https://github.com/scikit-learn-contrib/scikit-learn-extra/issues/54)