chore(deps): update dependency @types/node to v20

Author: renovate[bot]

lit-element-ts-esbuild/package-lock.json

@@ -21,7 +21,7 @@
   },
   "devDependencies": {
     "@open-wc/testing": "2.5.33",
-    "@types/node": "14.18.63",
+    "@types/node": "20.14.12",
     "@web/dev-server": "0.4.6",
     "@web/dev-server-esbuild": "0.4.4",
     "@web/test-runner": "0.16.0",

lit-element-ts-esbuild/package.json

@@ -21,7 +21,7 @@
   },
   "devDependencies": {
     "@open-wc/testing": "2.5.33",
-    "@types/node": "14.18.63",
+    "@types/node": "20.14.12",
     "@web/test-runner": "0.16.0",
     "@web/dev-server": "0.4.6",
     "tslib": "2.6.3",