Bump langsmith from 0.7.38 to 0.8.0 (#1521)

Bumps [langsmith](https://github.com/langchain-ai/langsmith-sdk) from 0.7.38 to 0.8.0.
- [Release notes](https://github.com/langchain-ai/langsmith-sdk/releases)
- [Commits](langchain-ai/langsmith-sdk@v0.7.38...v0.8.0)

---
updated-dependencies:
- dependency-name: langsmith
  dependency-version: 0.8.0
  dependency-type: direct:development
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -31,7 +31,7 @@ pydantic = ["pydantic>=2.0.0,<3"]
 openai-agents = ["openai-agents>=0.17.1", "mcp>=1.9.4, <2"]
 google-adk = ["google-adk>=1.27.0,<2"]
 langgraph = ["langgraph>=1.1.0"]
-langsmith = ["langsmith>=0.7.34,<0.8"]
+langsmith = ["langsmith>=0.7.34,<0.9"]
 lambda-worker-otel = [
   "opentelemetry-api>=1.11.1,<2",
   "opentelemetry-sdk>=1.11.1,<2",
@@ -78,7 +78,7 @@ dev = [
   "pytest-xdist>=3.6,<4",
   "moto[s3,server]>=5",
   "langgraph>=1.1.0",
-  "langsmith>=0.7.34,<0.8",
+  "langsmith>=0.7.34,<0.9",
   "setuptools<82",
   "opentelemetry-exporter-otlp-proto-grpc>=1.11.1,<2",
   "opentelemetry-semantic-conventions>=0.40b0,<1",