drop node 10 support

Author: jrushlow

package.json

@@ -23,7 +23,7 @@
     "url": "https://github.com/symfony/webpack-encore/issues"
   },
   "engines": {
-    "node": "^10.19.0 || ^12.0.0 || >=14.0.0"
+    "node": "^12.0.0 || >=14.0.0"
   },
   "homepage": "https://github.com/symfony/webpack-encore",
   "dependencies": {