build(deps): bump anthropic from 0.122.0 to 1.2.0

Bumps [anthropic](https://github.com/anthropics/anthropic-sdk-python) from 0.122.0 to 1.2.0.
- [Release notes](https://github.com/anthropics/anthropic-sdk-python/releases)
- [Changelog](https://github.com/anthropics/anthropic-sdk-python/blob/main/CHANGELOG.md)
- [Commits](anthropics/anthropic-sdk-python@v0.122.0...v1.2.0)

---
updated-dependencies:
- dependency-name: anthropic
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -34,7 +34,7 @@ dependencies = [
     "xinference-client==3.2.0",
 
     # Model providers & cloud SDKs
-    "anthropic==0.122.0",
+    "anthropic==1.2.0",
     "boto3==1.43.86",
     "cohere==7.0.8",
     "dashscope==1.26.7",