chore(deps-dev): bump lodash from 4.17.11 to 4.17.15 in /platform/viewer (#1403)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.11 to 4.17.15.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.11...4.17.15)

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

platform/viewer/package.json

@@ -88,7 +88,7 @@
     "cypress": "^3.8.0",
     "gh-pages": "2.0.1",
     "identity-obj-proxy": "3.0.x",
-    "lodash": "4.17.11",
+    "lodash": "4.17.15",
     "lodash.clonedeep": "4.5.0"
   }
 }