Update Python dependencies (#258)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -40,17 +40,17 @@ Repository = "https://github.com/connectrpc/connect-python"
 dev = [
   "asgiref==3.11.1",
   "brotli==1.2.0",
-  "buf-bin==1.69.0",
+  "buf-bin==1.70.0",
   "connect-python-example",
-  "granian==2.7.4",
+  "granian==2.7.5",
   "grpcio-tools==1.80.0",
   "gunicorn==26.0.0",
   "hypercorn==0.18.0",
   "poethepoet==0.46.0",
   "pyvoy==0.3.0",
-  "ruff==0.15.14",
-  "tombi==1.0.0",
-  "ty==0.0.39",
+  "ruff==0.15.15",
+  "tombi==1.1.1",
+  "ty==0.0.40",
   "types-grpcio==1.0.0.20260518",
   "types-protobuf==7.34.1.20260518",
   "typing_extensions==4.15.0",