Refactor docker setup (#478)

* remove poetry and simplify docker file

* run docker on self hosted for GPU tests

* ensure scikit build

* updating README

* fix: missing scikit-build

* adding trt requirement for local tests

* revert pyproject.toml to support skbuild automatically again

* remove docker from makefile

* good luck

* einer geht noch

* remove requirements.txt deps

* solving how to install torch as buidl req

* add some magic

* update setuptools

* upgrade pip

* update readme