Bump ctor from 0.6.0 to 0.6.1

Bumps [ctor](https://github.com/mmastrac/rust-ctor) from 0.6.0 to 0.6.1.
- [Commits](https://github.com/mmastrac/rust-ctor/commits)

---
updated-dependencies:
- dependency-name: ctor
  dependency-version: 0.6.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]