[TOO-522] Supress chardet noizy versioning warning (#792)

Use this PR summary:

---

## [TOO-522] Suppress chardet warning and fix OpenTelemetry telemetry

### Summary
Reduces noisy chardet/urllib3 warnings in telemetry and updates the
OpenTelemetry logger API to match the current SDK.

### Changes

**`libs/arcade-serve/arcade_serve/fastapi/telemetry.py`**
- Add `warnings.filterwarnings` to ignore `RequestsDependencyWarning`
when chardet≥6 is present (requests uses charset-normalizer regardless)
- Replace `_logs.set_logger_provider` with `set_logger_provider` from
`opentelemetry._logs` (API change in OpenTelemetry 1.15+)

**`.ruff.toml`**
- Add per-file ignore for E402 on `telemetry.py` because
`warnings.filterwarnings` must run before the opentelemetry imports that
pull in requests

**`libs/arcade-serve/pyproject.toml`**
- Bump version 3.2.1 → 3.2.2

---
Closes TOO-522

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: changes are limited to telemetry initialization (warning
filtering and OpenTelemetry logger-provider wiring) plus a patch version
bump, with minimal impact outside observability.
> 
> **Overview**
> Reduces telemetry startup noise by filtering `requests`
`chardet`-related warnings before OpenTelemetry imports, and updates
logging initialization to use `opentelemetry._logs.set_logger_provider`
instead of the deprecated `_logs.set_logger_provider` call.
> 
> Adds a targeted Ruff `E402` per-file ignore for `telemetry.py` to
allow the early warning filter, and bumps `arcade-serve` version from
`3.2.1` to `3.2.2`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
5166c51be7cdfb05f86df18490a0c98b44f771c2. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

.ruff.toml

@@ -62,6 +62,8 @@ ignore = [
 "**/tests/*" = ["S101"]
 "libs/**/*.py" = ["C901"]
 "libs/arcade-mcp-server/docs/**" = ["TRY400"]
+# E402: warnings.filterwarnings must run before opentelemetry imports (which pull in requests)
+"libs/arcade-serve/arcade_serve/fastapi/telemetry.py" = ["E402"]
 
 [format]
 preview = true

libs/arcade-serve/arcade_serve/fastapi/telemetry.py

@@ -1,10 +1,21 @@
 import logging
 import os
 import urllib.parse
+import warnings
 from typing import Literal, Optional
 
+# requests scans the environment for chardet at import time and emits a
+# RequestsDependencyWarning when chardet>=6 is present (e.g. pulled in by tox).
+# The warning is noise: requests uses charset-normalizer regardless of chardet.
+warnings.filterwarnings(
+    "ignore",
+    message="urllib3.*chardet.*",
+    module="requests",
+)
+
 from fastapi import FastAPI
-from opentelemetry import _logs, trace
+from opentelemetry import trace
+from opentelemetry._logs import set_logger_provider
 from opentelemetry.exporter.otlp.proto.http._log_exporter import OTLPLogExporter
 from opentelemetry.exporter.otlp.proto.http.metric_exporter import OTLPMetricExporter
 from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
@@ -102,7 +113,7 @@ class OTELHandler:
         otlp_log_exporter = OTLPLogExporter()
 
         self._logger_provider = LoggerProvider(resource=self.resource)
-        _logs.set_logger_provider(self._logger_provider)
+        set_logger_provider(self._logger_provider)
 
         # Create a batch span processor and add the exporter
         self._log_processor = BatchLogRecordProcessor(otlp_log_exporter)

libs/arcade-serve/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "arcade-serve"
-version = "3.2.1"
+version = "3.2.2"
 description = "Arcade Serve - Serving infrastructure for Arcade tools and workers"
 readme = "README.md"
 license = {text = "MIT"}