v1.16.0

## New features 🚀
* **Tools**
  * Add Bing search engine to WebSearchTool by @albertvillanova in https://github.com/huggingface/smolagents/pull/1313
* **Local Python executor improvements**
  * Support passing custom functions to local Python executor by @albertvillanova in https://github.com/huggingface/smolagents/pull/1302
  * Support executor_kwargs in LocalPythonExecutor for initialization customization by @albertvillanova in https://github.com/huggingface/smolagents/pull/1314
  * Add timeout mechanism for code execution by @albertvillanova in https://github.com/huggingface/smolagents/pull/1318
* **CLI improvements**
* Enable local web agents via api_base and api_key by @zbloss in https://github.com/huggingface/smolagents/pull/1333

## Important changes ⚠️
* **Default provider for InferenceClientModel is now "auto"**
  The default value of the `provider` argument in `InferenceClientModel` has changed from `"hf-inference"` to `"auto"`.
  With `"auto"`, the client will automatically select the first available provider for the model, following the user's configured priority at https://hf.co/settings/inference-providers
  * Pin minimum version of huggingface-hub to use InferenceClient auto provider by @julien-c in https://github.com/huggingface/smolagents/pull/1322

## Bug Fixes 🐛
* **Streaming GradioUI fixes**
  * Fix thought yield in GradioUI for streaming and non-streaming by @albertvillanova in https://github.com/huggingface/smolagents/pull/1311
  * Fix duplicate error message in GradioUI, test, and refactor by @albertvillanova in https://github.com/huggingface/smolagents/pull/1312
  * Fix duplicate plan display in GradioUI when streaming by @albertvillanova in https://github.com/huggingface/smolagents/pull/1317

## Documentation 📚
* Improve docs about Agentic RAG by @albertvillanova in https://github.com/huggingface/smolagents/pull/1319
* Update Readme video with streaming example by @aymeric-roucher in https://github.com/huggingface/smolagents/pull/1306

## Misc 🛠️
* Bump dev version: v1.16.0.dev0 by @albertvillanova in https://github.com/huggingface/smolagents/pull/1304
* Update minimum supported Gradio version to 5.14.0 to fix Sidebar-related AttributeError by @albertvillanova in https://github.com/huggingface/smolagents/pull/1309
* Fix deprecation of HfApiModel by @albertvillanova in https://github.com/huggingface/smolagents/pull/1315
* Fix CI DuckDuckGoSearchTool tests raising 202 Ratelimit by @albertvillanova in https://github.com/huggingface/smolagents/pull/1324
* Remove utils dir from Makefile check_dirs by @tobiasofsn in https://github.com/huggingface/smolagents/pull/1335


## New Contributors
* @tobiasofsn made their first contribution in https://github.com/huggingface/smolagents/pull/1335
* @zbloss made their first contribution in https://github.com/huggingface/smolagents/pull/1333

**Full Changelog**: https://github.com/huggingface/smolagents/compare/v1.15.0...v1.16.0