build(deps): bump rust-overlay from 6ef009b to 57a23bf

Bumps [rust-overlay](https://github.com/oxalica/rust-overlay) from `6ef009b` to `57a23bf`.
- [Commits](oxalica/rust-overlay@6ef009b...57a23bf)

---
updated-dependencies:
- dependency-name: rust-overlay
  dependency-version: 57a23bfaf4f7017267294b161175db1e32eb1c85
  dependency-type: direct:production
...

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Author: dependabot[bot]