Repair automated release process #1326
Description
The v1.10.0 release to PyPI failed. I think that the token we're using (via Github Actions secrets) has expired, but I can't be sure b/c I don't have access to the stac-utils PyPI account. I'm going to bring up the topic at the next regular STAC community meeting and we can come up with a plan to future-proof our release/maintenance process there. I expect that whatever we come up with will apply to more than just pystac (e.g. pystac-client at least should use a similar process).