Add option to apply context file to release products to canonicalise prefixes

[matentzn]

Similar to what we can already do for templates: https://gitlab.c-path.org/c-pathontology/critical-path-ontology/-/blob/main/src/ontology/cpont-odk.yaml#L77

This will also allow us to circumvent issues like this: https://github.com/ontodev/robot/issues/1101