chore(deps): bump lodash from 4.17.15 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.15...4.17.21)

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

package.json

@@ -39,7 +39,7 @@
  "bootstrap": "^4.5.0",
  "express": "^4.15.2",
  "font-awesome": "^4.7.0",
- "lodash": "^4.17.15",
+ "lodash": "^4.17.21",
  "rxjs": "~7.5.0",
  "tslib": "^2.3.0",
  "zone.js": "~0.11.4"