consider using Dataverse Uploader Action from GitHub Marketplace

[pdurbin]

@atrisovic just created the Dataverse Uploader Action at https://github.com/marketplace/actions/dataverse-uploader-action and I'd like to consider using it for this repo.

Some considerations:

• The only file from this repo that currently appears in the dataset is data/2019-02-25.tsv (or whatever date)
• Other files in the dataset are JSON, the primary data, from the GitHub API. These are currently archived at https://github.com/pdurbin/open-source-at-harvard-primary-data

I'm definitely open to reorganizing things. I'm also not sure how important it is to keep the primary data in the dataset or archived anywhere.

The dataset can be found at https://doi.org/10.7910/DVN/TJCLKP