Increase minimum Node.js version to 16

.github/workflows/build-lint-test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x, 18.x, 20.x]
+        node-version: [16.x, 18.x, 20.x]
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}

.nvmrc

@@ -1 +1 @@
-v12
+v16

package.json

@@ -5,7 +5,7 @@
   "repository": "https://github.com/MetaMask/web3-provider-engine",
   "main": "index.js",
   "engines": {
-    "node": ">=12.0.0"
+    "node": "^16.20 || ^18.16 || >=20"
   },
   "scripts": {
     "test": "node test/index.js && yarn lint",