chore(deps): bump stable_deref_trait from 1.2.0 to 1.2.1 (#880)

Bumps [stable_deref_trait](https://github.com/storyyeller/stable_deref_trait) from 1.2.0 to 1.2.1.
- [Commits](https://github.com/storyyeller/stable_deref_trait/commits)

---
updated-dependencies:
- dependency-name: stable_deref_trait
  dependency-version: 1.2.1
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]