chore: bump agentscore-py dep to >=2.3.0 (matches sdk version-lockstep)

agentscore-py 2.2.0 was renumbered to 2.3.0 to leapfrog the yanked 2.2.1
(ghost publish on PyPI). Bumping the dep range in lockstep.

Author: vvillait88

pyproject.toml

@@ -12,7 +12,7 @@ requires-python = ">=3.11"
 keywords = ["agentscore", "agent-commerce", "agentic-payments", "402", "x402", "mpp", "machine-payments-protocol", "fastapi", "starlette", "flask", "django", "aiohttp", "sanic", "middleware", "trust", "reputation", "kyc", "identity", "stripe", "tempo", "solana", "base", "ai-agent"]
 dependencies = [
     "httpx>=0.25.0,<1.0.0",
-    "agentscore-py>=2.2.0",
+    "agentscore-py>=2.3.0",
 ]
 classifiers = [
     "Development Status :: 5 - Production/Stable",