fix #1744 - add npm minimum version

Author: leibale

package.json

@@ -33,5 +33,8 @@
   "bugs": {
     "url": "https://github.com/redis/node-redis/issues"
   },
-  "homepage": "https://github.com/redis/node-redis"
+  "homepage": "https://github.com/redis/node-redis",
+  "engines": {
+    "npm": ">=7"
+  }
 }