Label osparc_python_tutorial_testing/Dockerfile with OCI label annotations

[pcrespov]

This image is used in the e2e

• Inject OCI labels to inform where, when, what and how ... so that we can track back the original Dockerfile location and reproduce it when something goes wrong in the e2e runs

https://github.com/ITISFoundation/osparc-simcore-clients/blob/281549bbd51cc857c211b79a47bf5dfed07989a8/docker/osparc_python_tutorial_testing/Dockerfile