chore(deps): update dependency pydantic to v2.12.3 (2/main)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
pydantic (changelog)	==2.12.0 -> ==2.12.3

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Pre-merge checks for Synapse or MAS workloads

• The Release Notes do not describe any breaking changes.

• The Upgrade document does not describe any breaking changes.

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Release Notes

pydantic/pydantic (pydantic)

v2.12.3

Compare Source

v2.12.2: 2025-10-14

Compare Source

v2.12.2 (2025-10-14)

What's Changed

Fixes

• Release a new pydantic-core version, as a corrupted CPython 3.10 manylinux2014_aarch64 wheel got uploaded (pydantic-core#1843).
• Fix issue with recursive generic models with a parent model class by @​Viicos in #​12398

Full Changelog: pydantic/pydantic@v2.12.1...v2.12.2

v2.12.1: 2025-10-13

Compare Source

v2.12.1 (2025-10-13)

GitHub release

What's Changed

This is the first 2.12 patch release, addressing most (but not all yet) regressions from the initial 2.12.0 release.

Fixes

• Do not evaluate annotations when inspecting validators and serializers by @​Viicos in #​12355
• Make sure None is converted as NoneType in Python 3.14 by @​Viicos in #​12370
• Backport V1 runtime warning when using Python 3.14 by @​Viicos in #​12367
• Fix error message for invalid validator signatures by @​Viicos in #​12366
• Populate field name in ValidationInfo for validation of default value by @​Viicos in pydantic-core#1826
• Encode credentials in MultiHostUrl builder by @​willswire in pydantic-core#1829
• Respect field serializers when using serialize_as_any serialization flag by @​davidhewitt in pydantic-core#1829
• Fix various RootModel serialization issues by @​davidhewitt in pydantic-core#1836

New Contributors

• @​willswire made their first contribution in pydantic-core#1829

Full Changelog: pydantic/pydantic@v2.12.0...v2.12.1

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