v4.3.4

This PR includes extended support for ensuring that the appropriate Risk and Observable objects are created. See the PR linked below for more details.
There are also some small validation fixes around validating MITRE ID formats.

What's Changed

• Abstract Commonly Used Annotated Type Definitions by @pyth0n1c in #271
• Update setuptools requirement from >=69.5.1,<74.0.0 to >=69.5.1,<75.0.0 by @dependabot in #270
• Enabling risk/observable matching by @cmcginley-splunk in #241
• Update pyproject.toml by @pyth0n1c in #281

Full Changelog: v4.3.3...v4.3.4