Enhancement: Update code to reflect Python 3.9 updates

[yhan818]

Summary After completing redata-commons https://github.com/UAL-RE/redata-commons/issues/23 and ReQUIAM Python version upgrades https://github.com/UAL-RE/ReQUIAM/issues/170, this repository shall be updated to be consistent with other ReDATA software.

Objectives Migrate to Python 3.9

Proposal

• [x] Update requirements.txt (redata=0.5.0)
• [x] Remove .travis.yml (no longer in use)
• [x] Update setup.py
• [x] Update /requiam_csv/init.py (version = "0.13.0")
• [x] Update .github/workflows/python-package.yml

Testing notes Need to verify that the current version of python, numpy, and pandas work as usual. Testing shall go through "script_run" and create_csv.py and Inpspect_csv.py under "/requiam_csv"

• [x] Check the difference "dry_run.csv" and previous research_themes.csv

Additional notes

• [x] There shall have no difference in the csv after the upgrade. So no need to update the production env.

redata >=0.4.2 shall work. However, for the maintainability, we try to use the same sets of dependencies (redata, numpy, pandas, sphinx)

Implemented in: TBD

[yhan818]

Both "inspect_csv.py" and "create_csv.py" use pandas and numpy

[yhan818]

I double-checked compile logs. The latest dependencies: Python 3.9, redata 0.5.0, Pandas 1.4.3 and tabulate 0.8.10 were used.