chore(deps): update types-pyyaml requirement in /client-sdk (#9)

Updates the requirements on [types-pyyaml](https://github.com/python/typeshed) to permit the latest version.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-pyyaml
  dependency-version: 6.0.12.20260906
  dependency-type: direct:development
...

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Author: dependabot[bot]

client-sdk/pyproject.toml

@@ -67,7 +67,7 @@ dev = [
     "pytest-cov>=4.0",
     "ruff>=0.17.0",
     "mypy>=1.0",
-    "types-PyYAML>=6.0",
+    "types-PyYAML>=6.0.12.20260906",
 ]
 
 [project.urls]