CI: add PR check to preview job

[signed-long]

Adds a status check to the PR for the preview job.

https://github.com/signed-long/new-connect/pull/19/checks

[github-actions[bot]]

deployed preview: https://90.connect-d5y.pages.dev

Welcome to new-connect! Make sure to:

• read the contributing guidelines
• mark your PR as a draft until it's ready to review
• post the preview on Discord; feedback from users will speedup the PR review

Mobile

Desktop

[adeebshihadeh]

Can we also add a check when it's started?

[signed-long]

Updated to add in-progress check to start of the job

see: https://github.com/signed-long/new-connect/pull/20