Update version format

Author: laike9m

pyproject.toml

@@ -10,7 +10,7 @@ dependencies = [
   "markdown>=3.5.1",
   "flask-htmx>=0.3.2",
 ]
-requires-python = "~=3.12"
+requires-python = ">=3.12,<3.13"
 readme = "README.md"
 license = { text = "MIT" }