Remove support for end-of-life Node.js version 12.

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        node-version: [12.x, 14.x, 16.x, 18.x]
+        node-version: [14.x, 16.x, 18.x]
 
     steps:
     - uses: actions/checkout@v3
@@ -27,8 +27,4 @@ jobs:
     - name: Install Dependencies
       run: npm install --no-package-lock
     - name: Run All Validations
-      if: ${{ matrix.node-version != '12.x' }}
       run: npm run ci
-    - name: Run Tests Only
-      if: ${{ matrix.node-version == '12.x' }}
-      run: npm run test

package.json

@@ -45,7 +45,7 @@
     "upgrade": "npx --yes npm-check-updates --upgrade"
   },
   "engines": {
-    "node": ">=12"
+    "node": ">=14"
   },
   "dependencies": {
     "markdown-it": "12.3.2"