build: set min node engine >=18.0.0

Author: subfuzion

ai-platform/snippets/package.json

@@ -4,7 +4,7 @@
   "license": "Apache-2.0",
   "author": "Google LLC",
   "engines": {
-    "node": ">=16.0.0"
+    "node": ">=18.0.0"
   },
   "files": [
     "*.js"

appengine/analytics/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": "22.x"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "start": "node app.js",

appengine/building-an-app/build/package.json

@@ -14,7 +14,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": "22.x"
+    "node": ">=18.0.0"
   },
   "author": "Google Inc.",
   "license": "Apache-2.0",

appengine/building-an-app/update/package.json

@@ -14,7 +14,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": "22.x"
+    "node": ">=18.0.0"
   },
   "author": "Google Inc.",
   "license": "Apache-2.0",

appengine/datastore/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": "22.x"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "start": "node app.js",

appengine/endpoints/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": "22.x"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "deploy": "gcloud app deploy",

appengine/hello-world/flexible/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": ">=16.0.0"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "start": "node app.js",

appengine/hello-world/flexible_nodejs16_and_earlier/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": "=v16.20.2"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "start": "node app.js",

appengine/hello-world/standard/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/GoogleCloudPlatform/nodejs-docs-samples.git"
   },
   "engines": {
-    "node": ">=16.0.0"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "start": "node app.js",

appengine/memcached/package.json

@@ -6,7 +6,7 @@
   "license": "Apache Version 2.0",
   "author": "Google Inc.",
   "engines": {
-    "node": "22.x"
+    "node": ">=18.0.0"
   },
   "scripts": {
     "start": "node app.js",