Bump shell-quote from 1.6.1 to 1.8.1

Bumps [shell-quote](https://github.com/ljharb/shell-quote) from 1.6.1 to 1.8.1.
- [Changelog](https://github.com/ljharb/shell-quote/blob/main/CHANGELOG.md)
- [Commits](ljharb/shell-quote@v1.6.1...v1.8.1)

---
updated-dependencies:
- dependency-name: shell-quote
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]