Updates to jsonschema to include newer versions. (#17613)

* Additional versions of py-jsonschema.

* Tweak to force Maestro to use jsonschema@3.2.0:

* Correction of whitespace (flake8 error).

* Merges importlib's Python  version conditons

Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>

Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>