Bump types-pyyaml from 6.0.12.20250822 to 6.0.12.20250915

Bumps [types-pyyaml](https://github.com/typeshed-internal/stub_uploader) from 6.0.12.20250822 to 6.0.12.20250915.
- [Commits](https://github.com/typeshed-internal/stub_uploader/commits)

---
updated-dependencies:
- dependency-name: types-pyyaml
  dependency-version: 6.0.12.20250915
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

poetry.lock

@@ -40,7 +40,7 @@ coverage = "^7.10.7"
 requests = "^2.32.5"
 types-requests = "^2.32.4.20250809"
 pyyaml = "^6.0.1"
-types-pyyaml = "^6.0.12.20250822"
+types-pyyaml = "^6.0.12.20250915"
 flask = "^3.1.2"
 pytest-mypy-plugins = "^3.0.0"
 ruff = "^0.12.11"