fix: upgrade h11 to 0.16.0, httpx to 0.28.1, and python to >=3.8,<4 to address CVE-2025-43859

Author: xiangfu0

pyproject.toml

@@ -9,11 +9,12 @@ packages = [{include = "pinotdb"}]
 homepage = "https://github.com/python-pinot-dbapi/pinot-dbapi"
 
 [tool.poetry.dependencies]
-python = ">=3.7,<4"
+python = ">=3.8,<4"
 ciso8601 = "^2.1.3"
-httpx = ">=0.23.0,<0.28.0"
+httpx = "0.28.1"
 sqlalchemy = {version = ">=1.4,<2", optional = true}
 requests = "^2.25.0"
+h11 = "0.16.0"
 
 [tool.poetry.extras]
 sqlalchemy = ["sqlalchemy", "requests"]