Airflow Pipelines - Include airflow docker image build as part of pipelines

Going forward we plan to install Osdu python packages as part of airflow docker image itself, rather than via extraPipPackages during airflow charts deployment. As of now we are manually building the airflow image, we should automate this process by including a step in pipelines itself to build the airflow image along with relevant versions of python packages and publish the same to a container registry

The changes to remove python packages from extraPipPackages are part of this MR.

The image hardcoded in the values file msosdu.azurecr.io/airflow-docker-image:v0.10 already contains the latest release/0.12 python packages installed