Bump walrus from 0.9.2 to 0.9.3 (#3)

Bumps [walrus](https://github.com/coleifer/walrus) from 0.9.2 to 0.9.3.
- [Release notes](https://github.com/coleifer/walrus/releases)
- [Changelog](https://github.com/coleifer/walrus/blob/master/CHANGELOG.md)
- [Commits](coleifer/walrus@0.9.2...0.9.3)

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

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