Bump shelljs from 0.2.6 to 0.8.5

Bumps [shelljs](https://github.com/shelljs/shelljs) from 0.2.6 to 0.8.5.
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/shelljs/shelljs/compare/v0.2.6...v0.8.5)

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

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

package-lock.json

@@ -13373,10 +13373,15 @@
       }
     },
     "shelljs": {
-      "version": "0.2.6",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.2.6.tgz",
-      "integrity": "sha1-kEktcv/MgVmXa6umL7D2iE8MM3g=",
-      "dev": true
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
+      "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.0.0",
+        "interpret": "^1.0.0",
+        "rechoir": "^0.6.2"
+      }
     },
     "signal-exit": {
       "version": "3.0.2",

package.json

@@ -14,7 +14,7 @@
     "karma": "^2.0.4",
     "karma-junit-reporter": "^0.2.2",
     "protractor": "^5.3.2",
-    "shelljs": "^0.2.6",
+    "shelljs": "^0.8.5",
     "webpack-cli": "^3.0.8"
   },
   "scripts": {