chore: bump pydantic-ai from 0.4.2 to 1.56.0 in /examples/pydantic-ai

[dependabot]

Bumps pydantic-ai from 0.4.2 to 1.56.0.

Release notes

Sourced from pydantic-ai's releases.

v1.56.0 (2026-02-05)

What's Changed

🚀 Features

• Add Claude Opus 4.6, anthropic_effort and anthropic_thinking.type='adaptive' by @​dsfaccini in pydantic/pydantic-ai#4216
• Add anthropic_betas to AnthropicModelSettings by @​bohdanhr in pydantic/pydantic-ai#4180

🐛 Bug Fixes

• Fix Bedrock CachePoint placement with multiple trailing documents by @​psg2 in pydantic/pydantic-ai#4207
• Disallow downloading FileUrls pointing at the local network by default by @​DouweM in pydantic/pydantic-ai#4227

Full Changelog: pydantic/pydantic-ai@v1.55.0...v1.56.0

v1.55.0 (2026-02-04)

What's Changed

🐛 Bug Fixes

• Fix error when using OpenAIResponsesModel with "compatible" provider that returns reasoning_tokens as None instead by @​alibeyram in pydantic/pydantic-ai#4151
• Fix MultiModalContent union missing discriminator causing incorrect deserialization by @​jerry-reevo in pydantic/pydantic-ai#4191

Full Changelog: pydantic/pydantic-ai@v1.54.0...v1.55.0

v1.54.0 (2026-02-04)

What's Changed

🚀 Features

• Add concurrency limiting for Agents and Models by @​dmontagu in pydantic/pydantic-ai#4149

Full Changelog: pydantic/pydantic-ai@v1.53.0...v1.54.0

v1.53.0 (2026-02-04)

What's Changed

🚀 Features

• Infer gateway base URL from token region by @​Kludex in pydantic/pydantic-ai#4192

Full Changelog: pydantic/pydantic-ai@v1.52.0...v1.53.0

v1.52.0 (2026-02-02)

What's Changed

🚀 Features

... (truncated)

Changelog

Sourced from pydantic-ai's changelog.

Upgrade Guide

In September 2025, Pydantic AI reached V1, which means we're committed to API stability: we will not introduce changes that break your code until V2. For more information, review our Version Policy.

Breaking Changes

Here's a filtered list of the breaking changes for each version to help you upgrade Pydantic AI.

v1.0.1 (2025-09-05)

The following breaking change was accidentally left out of v1.0.0:

• See #2808 - Remove Python evaluator from pydantic_evals for security reasons

v1.0.0 (2025-09-04)

• See #2725 - Drop support for Python 3.9
• See #2738 - Make many dataclasses require keyword arguments
• See #2715 - Remove cases and averages attributes from pydantic_evals spans
• See #2798 - Change ModelRequest.parts and ModelResponse.parts types from list to Sequence
• See #2726 - Default InstrumentationSettings version to 2
• See #2717 - Remove errors when passing AsyncRetrying or Retrying object to AsyncTenacityTransport or TenacityTransport instead of RetryConfig

v0.x.x

Before V1, minor versions were used to introduce breaking changes:

v0.8.0 (2025-08-26)

See #2689 - AgentStreamEvent was expanded to be a union of ModelResponseStreamEvent and HandleResponseEvent, simplifying the event_stream_handler function signature. Existing code accepting AgentStreamEvent | HandleResponseEvent will continue to work.

v0.7.6 (2025-08-26)

The following breaking change was inadvertently released in a patch version rather than a minor version:

See #2670 - TenacityTransport and AsyncTenacityTransport now require the use of pydantic_ai.retries.RetryConfig (which is just a TypedDict containing the kwargs to tenacity.retry) instead of tenacity.Retrying or tenacity.AsyncRetrying.

v0.7.0 (2025-08-12)

See #2458 - pydantic_ai.models.StreamedResponse now yields a FinalResultEvent along with the existing PartStartEvent and PartDeltaEvent. If you're using pydantic_ai.direct.model_request_stream or pydantic_ai.direct.model_request_stream_sync, you may need to update your code to account for this.

See #2458 - pydantic_ai.models.Model.request_stream now receives a run_context argument. If you've implemented a custom Model subclass, you will need to account for this.

See #2458 - pydantic_ai.models.StreamedResponse now requires a model_request_parameters field and constructor argument. If you've implemented a custom Model subclass and implemented request_stream, you will need to account for this.

v0.6.0 (2025-08-06)

This release was meant to clean some old deprecated code, so we can get a step closer to V1.

See #2440 - The next method was removed from the Graph class. Use async with graph.iter(...) as run: run.next() instead.

... (truncated)

Commits

• d398bc9 Disallow downloading FileUrls pointing at the local network by default (#4227)
• 06c77f4 Iterate on auto-review prompt (#4228)
• e686fbf Iterate on auto-review prompt (#4226)
• 69096f2 Iterate on auto-review prompt (#4225)
• 0b929cd Iterate on auto-review prompt (#4224)
• 58bee8f Iterate on auto-review prompt (#4223)
• 7f55e43 Iterate on auto-review prompt (#4222)
• 8744335 Iterate on auto-review prompt (#4220)
• b6952a0 Add Claude Opus 4.6, anthropic_effort and `anthropic_thinking.type='adaptiv...
• d8e8f13 Fix Auto Review on forks (#4218)
• Additional commits viewable in compare view

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