Changed azureml dependency. Also updating tests to restore dependencies

[sharatsc]

Description

The environment is currently broken due to obsolete azureml-dataprep version. I'm updating azureml to latest sdk release. azureml-dataprep is installed as part of azureml-sdk.

Also updating pipelines to refresh conda environments on builds (to update to new dependencies)

Related Issues

Checklist:

• [x] My code follows the code style of this project, as detailed in our contribution guidelines.
• [ ] I have added tests.
• [ ] I have updated the documentation accordingly.