* Add Github Action from https://github.com/mambax/setup-polaris



* Add tag information to action

* repository name must be lowercase

* repository name must be lowercase

* repository name must be lowercase

* Own image

* Debug

* Make the file local

* Move into actions folder

* Rename action

* Remove path slash

* Rename Dockerfile

* Change path

* Move script

* Remove dot

* Test

* - Change to gh/download setup script
- Move docs into Infra as Code page

* Add small comment about Dockerfile

* Rm unwanted line break

* Improve action yaml

* Update test_setup.yml

* Update test_setup.yml

* Update test_setup.yml

* Pavel fixed all bugs
Co-authored-by: dom <dominik.meyer01@sap.com>
Co-authored-by: Pavel Zorin <pazonec@yandex.ru>