chore(release): prepare release v2.6.4

Author: peterschutt

pyproject.toml

@@ -57,7 +57,7 @@ maintainers = [
 name = "litestar"
 readme = "README.md"
 requires-python = ">=3.8,<4.0"
-version = "2.6.3"
+version = "2.6.4"
 
 [project.urls]
 Blog = "https://blog.litestar.dev"