Update version on main to 0.3.0 to begin work on the next release (#127)

Author: markurtz

pyproject.toml

@@ -17,7 +17,7 @@ include = ["*"]
 
 [project]
 name = "guidellm"
-version = "0.2.0"
+version = "0.3.0"
 description = "Guidance platform for deploying and managing large language models."
 readme = { file = "README.md", content-type = "text/markdown" }
 requires-python = ">=3.9.0,<4.0"