Check if the existing endpoint works or not.

> * Info: OpenDesk downloads and executes the script from Docker file
>
> * A single file per setup seems to be the simplest choice
>

Existing script: [https://github.com/nextcloud/integration\_openproject/blob/master/integration\_setup.sh](https://github.com/nextcloud/integration_openproject/blob/master/integration_setup.sh) 

TODO:

* Begin of the insertion[x]End of the insertion Begin of the deletion [ ]End of the deletion make setup APIs backward compatible Begin of the insertion(Done in [#802](https://github.com/nextcloud/integration_openproject/pull/802))End of the insertion
* [ ] separate bash script to setup OIDC auth method
* [ ] update the docs with necessary examples ([Docs](https://github.com/nextcloud/integration_openproject/blob/master/docs/setting_up_as_admin.md))