chore(deps): update dependency node to v20.18.0 (#1229)

Co-authored-by: homarr-renovate[bot] <158783068+homarr-renovate[bot]@users.noreply.github.com>

.nvmrc

@@ -1 +1 @@
-20.17.0
+20.18.0

package.json

@@ -42,7 +42,7 @@
   },
   "packageManager": "pnpm@9.12.0",
   "engines": {
-    "node": ">=20.17.0"
+    "node": ">=20.18.0"
   },
   "pnpm": {
     "patchedDependencies": {