added minimum npm version

.npmrc

@@ -0,0 +1 @@
+engine-strict=true

package.json

@@ -11,5 +11,9 @@
   },
   "devDependencies": {
     "concurrently": "^8.2.2"
-  }
+  },
+  "engines" : { 
+    "npm" : ">=7.24.2"
+  },
+  "engineStrict" : true
 }