chore: Bump to v2.2.3 for PyPI release

Previous releases failed due to PyPI auth issues (now resolved with
correct API token after repo rename to empathy-framework).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: 2 people

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "empathy-framework"
-version = "2.2.2"
+version = "2.2.3"
 description = "AI collaboration framework with persistent memory, anticipatory intelligence, and multi-agent orchestration"
 readme = {file = "README.md", content-type = "text/markdown"}
 requires-python = ">=3.10"