build(deps): bump toml from 0.7.2 to 0.7.3 (helix-editor#6459)

Bumps [toml](https://github.com/toml-rs/toml) from 0.7.2 to 0.7.3.
- [Release notes](https://github.com/toml-rs/toml/releases)
- [Commits](toml-rs/toml@toml-v0.7.2...toml-v0.7.3)

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

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