Description of problem:

The image stream uses the anaconda notebook image with tag "latest". It is required to pin the image to an explicit version 

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Go to OpenShift console > Builds > Image Stream
2. Open 
   "s2i-minimal-notebook-anaconda"
3. Go to YAML tab and seek for image version

Actual results:

"latest" tag is used

Expected results:

specific version used, e.g., v0.1.1

Reproducibility (Always/Intermittent/Only Once):

always

Build Details:

RHODS v1.1.1-41

Additional info: