build(deps): bump yaml in /tools/syn2mas in the production group

Bumps the production group in /tools/syn2mas with 1 update: [yaml](https://github.com/eemeli/yaml).


Updates `yaml` from 2.6.0 to 2.6.1
- [Release notes](https://github.com/eemeli/yaml/releases)
- [Commits](eemeli/yaml@v2.6.0...v2.6.1)

---
updated-dependencies:
- dependency-name: yaml
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production
...

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

Author: dependabot[bot]