GitLab

* [ci] move C++ tests to GitHub Actions

* skip more CI

* fix env variables

* fix some small things

* fix software setup

* add sudo

* UBUNTU_BASE_CONTAINER (spelling)

* fix condition on manylinux image

* restore other CI

* remove if-else from python_package

* define BUILD_ARTIFACTSTAGINGDIRECTORY for cpp jobs

* Apply suggestions from code review
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

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Co-authored-by: Nikita Titov <nekit94-08@mail.ru>