Bump es6-shim from 0.35.0 to 0.35.6

Bumps [es6-shim](https://github.com/paulmillr/es6-shim) from 0.35.0 to 0.35.6.
- [Release notes](https://github.com/paulmillr/es6-shim/releases)
- [Changelog](https://github.com/paulmillr/es6-shim/blob/master/CHANGELOG.md)
- [Commits](paulmillr/es6-shim@0.35.0...0.35.6)

---
updated-dependencies:
- dependency-name: es6-shim
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

DNN Platform/Modules/ResourceManager/ResourceManager.Web/package.json

@@ -42,7 +42,7 @@
   },
   "dependencies": {
     "copy-to-clipboard": "^3.0.5",
-    "es6-shim": "0.35.0",
+    "es6-shim": "0.35.6",
     "fetch-ie8": "1.4.2",
     "file-loader": "3.0.1",
     "less": "3.9.0",