Forced Dockerfiles to use spacy 3.2.1 to fix Docker build issue with Mimdmeld version 4.4.0

[Zozman]

As mentioned in #378, currently the Docker container builds fail because the version of spacy installed by mindmeld as a dependency is too old to use the en_core_web_sm model currently provided by spacy. This change forces the spacy version to be upgraded.

Not sure if this is the best solution to the issue or if updating the required version of spacy at

mindmeld/setup.py

Line 39 in b644c6f

"spacy~=2.3,!=2.3.6", # avoid 2.3.6 because it was yanked from PyPI

is better but providing this as a PR in case it helps.

[Zozman]

Updated to latest spacy in case this fix is still needed; currently still can't build Dockerfiles without this.