Switch release workflow to trusted publishing

[maresb]

We need to follow the procedure explained in https://discord.com/channels/974333176623280130/1367480257468432424/1371480480976998512

[maresb]

@aloctavodia, I saw you just published a version using PyPI legacy publishing. Anything I could do to help you convert to trusted publishing?

[aloctavodia]

Sorry, I did not have the time to check this yet, and yesterday I did a quick release before the pinning of pymc version was blocking myself and others.

[aloctavodia]

I added you as admin. Can you do the setup?

[maresb]

Ya, thanks! I will take care of it likely next week once I get the chance.

[aloctavodia]

Thank you!