build(deps): bump anthropic from 0.75.0 to 0.84.0

Bumps [anthropic](https://github.com/anthropics/anthropic-sdk-python) from 0.75.0 to 0.84.0.
- [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@v0.75.0...v0.84.0)

---
updated-dependencies:
- dependency-name: anthropic
  dependency-version: 0.84.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -3,5 +3,5 @@ pytest
 ruff
 slack-cli-hooks==0.2.0
 openai==2.14.0
-anthropic==0.75.0
+anthropic==0.84.0
 google-cloud-aiplatform==1.139.0