v0.7.10 - Fix Pydantic issues and add Pydantic v1 deprecation notice

What's Changed

• Add JSON schema for extended prefix map by @cthoyt in #109
• Make field validators classmethods by @sneakers-the-rat in #112

Deprecation Warning

Support for Pydantic v1 and Python 3.8 will be dropped on October 31^st, 2024, coincident with the obsolescence of Python 3.8. This will be accompanied by the v0.8.0 release of the curies package.

Full Changelog: v0.7.9...v0.7.10