Bump shelljs from 0.8.4 to 0.8.5

Bumps [shelljs](https://github.com/shelljs/shelljs) from 0.8.4 to 0.8.5.
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](shelljs/shelljs@v0.8.4...v0.8.5)

---
updated-dependencies:
- dependency-name: shelljs
  dependency-type: direct:development
...

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

package.json

@@ -74,7 +74,7 @@
     "recursive-assign": "0.2.0",
     "replace-in-file": "6.3.2",
     "ringcentral-embeddable-extension-common": "0.12.3",
-    "shelljs": "0.8.4",
+    "shelljs": "0.8.5",
     "standard": "16.0.4",
     "style-loader": "3.3.1",
     "stylus": "0.55.0",