Bump langsmith from 0.3.45 to 0.7.4

Bumps [langsmith](https://github.com/langchain-ai/langsmith-sdk) from 0.3.45 to 0.7.4.
- [Release notes](https://github.com/langchain-ai/langsmith-sdk/releases)
- [Commits](langchain-ai/langsmith-sdk@v0.3.45...v0.7.4)

---
updated-dependencies:
- dependency-name: langsmith
  dependency-version: 0.7.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -11,7 +11,7 @@ langchain-openai = "^0.3.35"
 langchain-core = "^0.3.81"
 langgraph = "^0.3.0"
 langgraph-checkpoint = "^2.0.12"
-langsmith = "^0.3.45"
+langsmith = ">=0.3.45,<0.8.0"
 python-dotenv = "^1.0.1"
 click = "^8.1.7"
 playwright = "^1.47.0"