fix: force pydantic < 2.10.0

[dolfim-ibm]

It seems the new Pydantic 2.10.0 release (16h ago).

Downgrading Pydantic works, and it seems the approach taken by many libraries. See https://github.com/run-llama/llama_index/issues/17016.

Issue resolved by this Pull Request: Resolves #406

Checklist:

• [ ] Documentation has been updated, if necessary.
• [ ] Examples have been added, if necessary.
• [ ] Tests have been added, if necessary.

[mergify[bot]]

Merge Protections

Your pull request matches the following merge protections and will not be merged until they are valid.

🟢 Enforce conventional commit

Wonderful, this rule succeeded.

Make sure that we follow https://www.conventionalcommits.org/en/v1.0.0/ - [X] `title ~= ^(fix|feat|docs|style|refactor|perf|test|build|ci|chore|revert)(?:\(.+\))?:`

[vagenas]

IMO best addressed on docling-core level: https://github.com/DS4SD/docling-core/pull/70

As soon as docling-core is patched (underway):

• users with affected versions (anyway) need a remediation step: that will be pip install --upgrade docling-core
• users with fresh pip install docling should get a good pydantic version out of the box