Update version to 0.5.0

Author: amrit110

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "aieng-bot"
-version = "0.4.0"
+version = "0.5.0"
 description = "Vector Institute AI Engineering Bot for Maintenance Tasks"
 readme = "README.md"
 authors = [{name = "Vector AI Engineering", email = "[email protected]"}]