* Moved V1 validation definitions to under .github for consistency with V2 validation definitions

* Added validation for more V2 notebooks

* Fixed deprecation warnings

* Add mlflow for validation

* Changed training V1 notebooks to ubuntu 20.04

* Updated requirements.txt to speed up install

* Updated creds, workspace and resource group

* Added pin for mlflow-skinny

* delete registry after creation

* always run deletion

* init env

* set working dir

* add sdk_helper

* add sub_id

* edit for debugging

* try debugging

* try deletion inside the notebook

* delete in the same step

* print registry name for debugging

* remove deletion for testing.

* change everything back for final pr

* modify format

* make deletion inside the ipnb

* try sdk deletion

* try sdk

* use verified api.

* change format

* Update registry-create.ipynb