Double check that an Posit Connect user can save a pin in another user's name if they have write access

[machow]

Leaving here as a reminder to myself to double check this quickly for the Posit Internal Data Science team

[juliasilge]

We just double-checked that this works still (again?), but let's add an automated test to make sure anyone added as a collaborator can write to a pin on Connect.

[github-actions[bot]]

This issue has been automatically locked. If you believe you have found a related problem, please file a new issue (with a reprex: https://reprex.tidyverse.org) and link to this issue.