Drop support for node v12 (#175)

* drop support for node v12

* Update nodejs.yml

* Update npmpublish.yml

Author: ctalkington

.github/workflows/nodejs.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x, 18.x]
+        node-version: [14.x, 16.x, 18.x, 20.x]
 
     steps:
     - uses: actions/checkout@v4.1.1

.github/workflows/npmpublish.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v4.1.1
       - uses: actions/setup-node@v4.0.2
         with:
-          node-version: 12
+          node-version: 16
       - run: npm ci
       - run: npm test
 
@@ -22,7 +22,7 @@ jobs:
       - uses: actions/checkout@v4.1.1
       - uses: actions/setup-node@v4.0.2
         with:
-          node-version: 12
+          node-version: 16
           registry-url: https://registry.npmjs.org/
       - run: npm ci
       - run: npm publish

package.json

@@ -20,7 +20,7 @@
     "lib"
   ],
   "engines": {
-    "node": ">= 12.0.0"
+    "node": ">= 14"
   },
   "scripts": {
     "test": "mocha --reporter dot"