chore(deps): bump ractor from 0.15.6 to 0.15.7

Bumps [ractor](https://github.com/slawlor/ractor) from 0.15.6 to 0.15.7.
- [Release notes](https://github.com/slawlor/ractor/releases)
- [Commits](slawlor/ractor@v0.15.6...v0.15.7)

---
updated-dependencies:
- dependency-name: ractor
  dependency-version: 0.15.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]