Bump cowsay from 5.0 to 6.1 in /src/py3.9

Bumps [cowsay](https://github.com/VaasuDevanS/cowsay-python) from 5.0 to 6.1.
- [Release notes](https://github.com/VaasuDevanS/cowsay-python/releases)
- [Changelog](https://github.com/VaasuDevanS/cowsay-python/blob/main/CHANGELOG.md)
- [Commits](VaasuDevanS/cowsay-python@v5.0...v6.1)

---
updated-dependencies:
- dependency-name: cowsay
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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