chore(deps-dev): bump types-pyyaml (#8998)

Bumps [types-pyyaml](https://github.com/python/typeshed) from 6.0.12.20250915 to 6.0.12.20260510.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-pyyaml
  dependency-version: 6.0.12.20260510
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Roger Zhang <ruojiazh@amazon.com>

Author: dependabot[bot]

pyproject.toml

@@ -71,7 +71,7 @@ dev = [
     "pytest-cov==7.1.0",
     "mypy==2.1.0",
     "types-pywin32==311.0.0.20260508",
-    "types-PyYAML==6.0.12.20250915",
+    "types-PyYAML==6.0.12.20260510",
     "types-chevron==0.14.2.20260408",
     "types-psutil==7.2.2.20260508",
     "types-setuptools==82.0.0.20260508",