Drop support for Node.js 14 & 16 (#540)

* Bumped v12

* undo format

* Update package.json

.github/workflows/ci.yml

@@ -40,14 +40,9 @@ jobs:
       contents: read
     strategy:
       matrix:
-        node-version: [14, 16, 18.17, 20, 22]
+        node-version: [18.17, 20, 22]
         os: [ubuntu-latest]
-        pino-version: [8.20.0, ^8.21.0, ^9.0.0]
-        exclude:
-          - node-version: 14
-            pino-version: ^9.0.0
-          - node-version: 16
-            pino-version: ^9.0.0
+        pino-version: [^9.0.0]
     steps:
       - name: Check out repo
         uses: actions/checkout@v4