chore(deps): bump pydantic-ai from 1.107.0 to 2.1.0

Bumps [pydantic-ai](https://github.com/pydantic/pydantic-ai) from 1.107.0 to 2.1.0.
- [Release notes](https://github.com/pydantic/pydantic-ai/releases)
- [Changelog](https://github.com/pydantic/pydantic-ai/blob/main/docs/changelog.md)
- [Commits](pydantic/pydantic-ai@v1.107.0...v2.1.0)

---
updated-dependencies:
- dependency-name: pydantic-ai
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pydantic-ai/requirements.txt

@@ -1,7 +1,7 @@
 slack-sdk==3.43.0
 slack-bolt==1.29.0
 slack-cli-hooks==0.3.0
-pydantic-ai[openai,anthropic]==1.107.0
+pydantic-ai[openai,anthropic]==2.1.0
 python-dotenv==1.2.2
 
 pytest==9.1.1