Bump shell-quote from 1.7.2 to 1.7.3 in /frontend

Bumps [shell-quote](https://github.com/substack/node-shell-quote) from 1.7.2 to 1.7.3.
- [Release notes](https://github.com/substack/node-shell-quote/releases)
- [Commits](https://github.com/substack/node-shell-quote/commits)

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

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Author: dependabot[bot]