fix: override lodash >=4.18.0 to patch code injection vulnerability

GHSA-r5fr-rjxr-66jc is a code injection vulnerability in lodash
below 4.18.0. The vulnerable transitive dependency comes through
@kinvolk/headlamp-plugin.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

package.json

@@ -35,7 +35,8 @@
     "overrides": {
       "tar": "^7.5.11",
       "undici": "^7.24.3",
-      "flatted": "^3.4.2"
+      "flatted": "^3.4.2",
+      "lodash": ">=4.18.0"
     }
   },
   "devDependencies": {