🔥 Dropped support for Node 12

refs https://github.com/TryGhost/Toolbox/issues/267

- Node 12 becomes EOL on April 30th so we're going to be dropping
  support for it in Ghost
- this commit updates the Node engine ranges so CLI can pick this up,
  and drops 12.22.1 from the CI matrix

.github/workflows/test.yml

@@ -100,7 +100,7 @@ jobs:
     if: github.event_name == 'push' || (github.event_name == 'pull_request' && !startsWith(github.head_ref, 'renovate/'))
     strategy:
       matrix:
-        node: [ '12.22.1', '14.17.0', '16.13.0' ]
+        node: [ '14.17.0', '16.13.0' ]
     name: Unit Tests (Node ${{ matrix.node }})
     steps:
       - uses: actions/checkout@v2
@@ -133,7 +133,7 @@ jobs:
     if: github.event_name == 'push' || (github.event_name == 'pull_request' && !startsWith(github.head_ref, 'renovate/'))
     strategy:
       matrix:
-        node: [ '12.22.1', '14.17.0', '16.13.0' ]
+        node: [ '14.17.0', '16.13.0' ]
         env:
           - DB: sqlite3
             NODE_ENV: testing

package.json

@@ -51,7 +51,7 @@
     "fix": "yarn fix:client && yarn fix:server"
   },
   "engines": {
-    "node": "^12.22.1 || ^14.17.0 || ^16.13.0",
+    "node": "^14.17.0 || ^16.13.0",
     "cli": "^1.17.0"
   },
   "dependencies": {