fix: bump to node 20 where possible

Author: luc122c

.github/workflows/docs-prs.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 20
           cache: 'pnpm'
 
       - name: Install dependencies

.github/workflows/docs.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 20
           cache: 'pnpm'
 
       - name: Install dependencies

packages/nuxt/playground/firebase.json

@@ -1,6 +1,6 @@
 {
   "functions": {
-    "runtime": "nodejs18",
+    "runtime": "nodejs20",
     "source": ".output/server"
   },
   "hosting": {

playground/functions/package.json

@@ -11,7 +11,7 @@
     "logs": "firebase functions:log"
   },
   "engines": {
-    "node": ">=18"
+    "node": ">=20"
   },
   "main": "lib/index.js",
   "dependencies": {