Update anthropic requirement in /lambdas/wo/email_processor

Updates the requirements on [anthropic](https://github.com/anthropics/anthropic-sdk-python) to permit the latest version.
- [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/v0.113.0...v0.116.0)

---
updated-dependencies:
- dependency-name: anthropic
  dependency-version: 0.116.0
  dependency-type: direct:production
...

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

lambdas/wo/email_processor/requirements.txt

@@ -1,2 +1,2 @@
-anthropic>=0.113.0
+anthropic>=0.116.0
 boto3>=1.43.38