fix(renovate): enable lockFileMaintenance (#736)

Author: ReenigneArcher

renovate-config.json5

@@ -20,6 +20,9 @@
     "dependencies",
     "{{categories}}"
   ],
+  lockFileMaintenance: {
+    enabled: true,
+  },
   "prConcurrentLimit": 10,
   "rebaseWhen": "never",  // to reduce CI load, do not auto rebase PRs
   "rollbackPrs": true,  // create a rollback PR when a dependency is yanked