[submodule] (deps): Bump cv from dd20133 to 8df7131

Bumps [cv](https://github.com/rionda/cv) from `dd20133` to `8df7131`.
- [Commits](rionda/cv@dd20133...8df7131)

---
updated-dependencies:
- dependency-name: cv
  dependency-type: direct:production
...

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