feature: @putout/plugin-remove-duplicate-keys: drop support of 🐊 < 42

Author: coderaiser

packages/plugin-remove-duplicate-keys/eslint.config.js

@@ -1,10 +1,3 @@
 import {safeAlign} from 'eslint-plugin-putout';
-import {matchToFlat} from '@putout/eslint-flat';
-import {defineConfig} from 'eslint/config';
 
-export const match = {
-    '*.md{js}': {
-        'no-dupe-keys': 'off',
-    },
-};
-export default defineConfig([safeAlign, matchToFlat(match)]);
+export default safeAlign;

packages/plugin-remove-duplicate-keys/package.json

@@ -33,7 +33,6 @@
     "key"
   ],
   "devDependencies": {
-    "@putout/eslint-flat": "^4.0.0",
     "@putout/test": "^15.0.0",
     "c8": "^10.0.0",
     "eslint": "^10.0.0",
@@ -43,11 +42,11 @@
     "nodemon": "^3.0.1"
   },
   "peerDependencies": {
-    "putout": ">=40"
+    "putout": ">=42"
   },
   "license": "MIT",
   "engines": {
-    "node": ">=20"
+    "node": ">=22"
   },
   "publishConfig": {
     "access": "public"