Run pytests on open PR

[CBroz1]

Currently test-conda.yml runs on a schedule. Ideally, these would run when opening a PR to catch issues before they're merged.

Currently, our data is hosted on Box, which requires a user password to saved as a secret. To run tests on PR would require some additional measures to avoid a security vulnerability - essentially gating this run on admin approval.

We can either ...

• Change how the data is fetched...
  • Changing service provider to something that does not require credentials
  • Perusing a different account option through Box, not requiring user password
  • Preserve data on GitHub between runs
• Add gate-keeping measures for these tests (e.g., admin must approve or label PR before tests run), making for a more cumbersome approval process

[CBroz1]

Or just change around the wget to pull each file individually, like this

[CBroz1]

Fixed by #1180