Bump shell-quote from 1.7.2 to 1.7.3

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)
- [Changelog](https://github.com/substack/node-shell-quote/blob/master/CHANGELOG.md)
- [Commits](https://github.com/substack/node-shell-quote/compare/v1.7.2...1.7.3)

---
updated-dependencies:
- dependency-name: shell-quote
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -57,7 +57,7 @@
     "pug-static-loader": "2.0.0",
     "raw-loader": "4.0.2",
     "sass-loader": "^12.3.0",
-    "shell-quote": "^1.7.2",
+    "shell-quote": "^1.7.3",
     "shelljs": "0.8.4",
     "slugify": "^1.6.1",
     "sortablejs": "^1.14.0",