build(deps): 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:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]