Bump lodash from 4.17.15 to 4.17.19

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.19)

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

package.json

@@ -26,7 +26,7 @@
     "koa-route": "^3.2.0",
     "koa-static": "^5.0.0",
     "koa-views": "^6.3.0",
-    "lodash": "^4.17.15",
+    "lodash": "^4.17.19",
     "node-fetch": "^2.6.0",
     "node-simple-cert": "0.0.1",
     "preact": "^10.4.4",