Update node version to latest LTS (#520)

.github/workflows/release.yaml

@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
         with:
-          node-version: "16"
+          node-version: "18"
       - run: echo "registry=https://registry.npmjs.org/" > .npmrc
       - run: echo "//registry.npmjs.org/:_authToken=${NODE_AUTH_TOKEN}" >> .npmrc
         env:

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
         with:
-          node-version: '16'
+          node-version: '18'
       - run: npm ci
       - run: npm audit signatures
       - run: cat .npmrc

.nvmrc

@@ -1 +1 @@
-v16
+v18

README.md

@@ -105,10 +105,12 @@ When you create a PR against the `master` branch, Amplify creates a new deployme
 Below versions of Node & npm are required:
 
 ```bash
-  "node": ">=16.17.0",
-  "npm": ">=8.15.0"
+  "node": ">=18.12.0",
+  "npm": ">=8.19.2"
 ```
 
+Run `nvm use` to use supported version.
+
 ### 3. Install packages
 
 ```bash

amplify.yml

@@ -3,8 +3,7 @@ frontend:
   phases:
     preBuild:
       commands:
-        - nvm install
-        - nvm use
+        - nvm install lts/gallium
         - npm ci
         - npm audit signatures
     build:

package.json

@@ -36,8 +36,8 @@
     "postinstall": "patch-package"
   },
   "engines": {
-    "node": ">=16.17.0",
-    "npm": ">=8.15.0"
+    "node": "^16.18.0 || ^18.12.0",
+    "npm": ">=8.19.2"
   },
   "browserslist": {
     "production": [
@@ -96,7 +96,7 @@
     "@testing-library/user-event": "^13.5.0",
     "@types/jest": "^27.0.3",
     "@types/lodash.clonedeep": "^4.5.7",
-    "@types/node": "^14.14.37",
+    "@types/node": "^18.11.9",
     "@types/react": "^16.14.23",
     "@types/react-dom": "^16.9.8",
     "@types/react-helmet": "^6.1.5",