Bump anthropic from 0.7.7 to 0.7.8

Bumps [anthropic](https://github.com/anthropics/anthropic-sdk-python) from 0.7.7 to 0.7.8.
- [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/v0.7.7...v0.7.8)

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

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

requirements.txt

@@ -1,4 +1,4 @@
-anthropic==0.7.7
+anthropic==0.7.8
 beautifulsoup4==4.12.2
 black==23.12.0
 certifi>=2023.7.22 # not directly required, pinned by Snyk to avoid a vulnerability