Bump anthropic from 0.2.5 to 0.21.3

Bumps [anthropic](https://github.com/anthropics/anthropic-sdk-python) from 0.2.5 to 0.21.3.
- [Release notes](https://github.com/anthropics/anthropic-sdk-python/releases)
- [Changelog](https://github.com/anthropics/anthropic-sdk-python/blob/main/CHANGELOG.md)
- [Commits](https://github.com/anthropics/anthropic-sdk-python/compare/v0.2.5...v0.21.3)

---
updated-dependencies:
- dependency-name: anthropic
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -30,7 +30,7 @@ torchvision==0.16.1
 rich==13.5.2
 mkdocs
 mkdocs-material
-anthropic==0.2.5
+anthropic==0.21.3
 mkdocs-glightbox
 pre-commit==3.6.2
 psutil