Bump lodash from 3.3.0 to 4.17.21 in /priv/public/ui

Bumps [lodash](https://github.com/lodash/lodash) from 3.3.0 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@3.3.0...4.17.21)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

priv/public/ui/package-lock.json

@@ -49,7 +49,7 @@
     "file-saver": "2.0.2",
     "ipaddr.js": "2.0.1",
     "js-beautify": "1.10.3",
-    "lodash": "3.3.0",
+    "lodash": "4.17.21",
     "ngx-clipboard": "12.3.1",
     "oclazyload": "1.1.0",
     "ramda": "0.26.1",