backend container fails, missing spacy language model

[copernico]

The backend container fails with this message:

Traceback (most recent call last):
  File "main.py", line 11, in <module>
    from api.routers import jobs, nvd, preprocessed, users
  File "/app/api/routers/preprocessed.py", line 8, in <module>
    from commitdb.postgres import PostgresCommitDB
  File "/app/commitdb/postgres.py", line 13, in <module>
    from datamodel.commit import Commit
  File "/app/datamodel/commit.py", line 5, in <module>
    from datamodel.nlp import (
  File "/app/datamodel/nlp.py", line 9, in <module>
    nlp = load("en_core_web_sm")
  File "/usr/local/lib/python3.8/site-packages/spacy/__init__.py", line 54, in load
    return util.load_model(
  File "/usr/local/lib/python3.8/site-packages/spacy/util.py", line 436, in load_model
    raise IOError(Errors.E050.format(name=name))
OSError: [E050] Can't find model 'en_core_web_sm'. It doesn't seem to be a Python package or a valid path to a data directory.

It seems like we forgot to download the spacy language model in the Dockerfile....