build: Fix url repository

Author: unlight

package.json

@@ -4,7 +4,10 @@
   "license": "MIT",
   "description": "Generate object types, inputs, args, etc. from prisma schema file for usage with @nestjs/graphql module",
   "bin": "bin.js",
-  "repository": "https://github.com/unlight/nestjs-graphql-prisma.git",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/unlight/nestjs-graphql-prisma.git"
+  },
   "bugs": {
     "url": "https://github.com/unlight/nestjs-graphql-prisma/issues"
   },