chore(release): bump version to v0.21.0

Author: cofin

pyproject.toml

@@ -13,7 +13,7 @@ maintainers = [{ name = "Litestar Developers", email = "[email protected]" }]
 name = "sqlspec"
 readme = "README.md"
 requires-python = ">=3.9, <4.0"
-version = "0.20.0"
+version = "0.21.0"
 
 [project.urls]
 Discord = "https://discord.gg/litestar"