Switch truth update to use covidHubUtils + covidData on the VM

[Khoale1096]

Description

We would like to move from using the python scripts under data-truth/ directory to using covidHubUtils/covidData to update the truth for GitHub and Zoltar, mainly because:

1. All codes for truth aggregation and the creation of corresponding csv files are centralized and unit-tested in covidHubUtils/covidData, so we want to make use of that, instead of the non unit-tested python scripts as of currently
2. With the Virtual Machine being ready, we now have enough capacity to frequently utilize covidData.

Steps of Actions

• [x] Install covidData on the VM.
• [x] Install covidHubUtils on the VM.
• [x] Creates a cron job that daily update covidData & covidHubUitls to have the latest features
• [x] Automate hospitalization truth as part of the move
• [x] Creates another cron job that weekly update the truth csv files using a script similar to this, making use of those 2 packages and push to GitHub.
• [x] Add a GitHub action that can trigger this action on the VM and retire the current github action that perform weekly truth update
• [x] Update truth wiki to reflect this change

[ydhuang28]

Is there anything you need from me for configuration, etc.? FYI all code is located at /code on the VM.

[Khoale1096]

Github Action reaches capacity limit. Can use maximize-build-space github action to increase limit