Bump HTTPX (#2106)

* Bump HTTPX

* Move to httpx >=0.27.0, LiteLLM error

Author: NolanTrem

py/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "r2r"
-version = "3.5.8"
+version = "3.5.9"
 description = "SciPhi R2R"
 readme = "README.md"
 license = {text = "MIT"}
@@ -16,7 +16,7 @@ dependencies = [
     "aiofiles >=24.1.0,<25.0.0",
     "alembic >=1.13.3,<2.0.0",
     "fastapi >=0.115.11,<0.116.0",
-    "httpx >=0.27.0,<0.28.0",
+    "httpx >=0.27.0",
     "openai >=1.11.1,<1.61.0",
     "python-dotenv >=1.0.1,<2.0.0",
     "psycopg-binary >=3.2.3,<4.0.0",