BREAKING: Drop Node 10 support

Author: RyanZim

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
   test:
     strategy:
       matrix:
-        node: [10.x, 12.x, 14.x, 16.x]
+        node: [12.x, 14.x, 16.x]
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:

package.json

@@ -4,7 +4,7 @@
   "description": "CLI for PostCSS",
   "main": "index.js",
   "engines": {
-    "node": ">=10"
+    "node": ">=12"
   },
   "bin": {
     "postcss": "./bin/postcss"