Bump lodash from 4.17.19 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.19 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.19...4.17.21)

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

package.json

@@ -20,7 +20,7 @@
         "axios": "^0.21.1",
         "classnames": "^2.2.6",
         "date-fns": "^2.11.1",
-        "lodash": "^4.17.19",
+        "lodash": "^4.17.21",
         "markdown-it": "^10.0.0",
         "next": "^10.1.3",
         "rc-tooltip": "^5.1.0",