chore: Bump version to 1.5.5 in __init__.py and pyproject.toml

Author: trend-denny-lee

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "adk-agui-middleware"
-version = "1.5.2"
+version = "1.5.5"
 description = "Python middleware bridging Google ADK agents with AGUI protocol via Server-Sent Events for real-time agent interactions"
 readme = "README.md"
 requires-python = ">=3.10"

src/adk_agui_middleware/__init__.py

@@ -16,7 +16,7 @@
 
 __author__ = "Denny Lee"
 __email__ = "denny_lee@trendmicro.com"
-__version__ = "1.5.2"
+__version__ = "1.5.5"
 
 __all__ = [
     "SSEService",