Bump version to 0.2.0rc2

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: tcdent

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "agentexec"
-version = "0.2.0rc1"
+version = "0.2.0rc2"
 description = "Production-ready orchestration for OpenAI Agents with Redis-backed coordination, activity tracking, and workflow management"
 readme = "README.md"
 requires-python = ">=3.12"