Bump lodash from 4.17.20 to 4.17.21 (#618)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.20...4.17.21)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -197,7 +197,7 @@
     "html-webpack-inline-source-plugin": "0.0.10",
     "html-webpack-plugin": "^3.2.0",
     "jquery": "^3.5.1",
-    "lodash": "^4.17.20",
+    "lodash": "^4.17.21",
     "minimatch": "^3.0.4",
     "node-sass": "^4.14.1",
     "path-exists": "^3.0.0",