chore(deps): bump lodash from 4.17.23 to 4.18.1

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.23 to 4.18.1.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.23...4.18.1)

---
updated-dependencies:
- dependency-name: lodash
  dependency-version: 4.18.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -79,7 +79,7 @@
     "jszip": "^3.10.1",
     "kolibri-constants": "^0.2.12",
     "kolibri-design-system": "5.6.0",
-    "lodash": "^4.17.23",
+    "lodash": "^4.18.1",
     "lowlight": "^3.3.0",
     "marked": "^16.1.1",
     "material-icons": "0.3.1",