Python package is not compatible with 3.6

[jeffgabhart]

The import of annotations from __future__ makes this python package incompatible with python 3.6

amazon-textract-response-parser/src-python/trp/trp2.py

Line 1 in 7b2727f

from __future__ import annotations

amazon-textract-response-parser/src-python/setup.py

Line 53 in 7b2727f

python_requires='>=3.6')

[schadem]

We'll update the setup.py. Python 3.6 is past EOL and will no longer be supported.

[athewsey]

Verified that setup.py explicitly sets python_requires='>=3.8'. Closing this issue as Python 3.6 is EOL and won't be supported going forward.