remove duplicate peerdeps

package.json

@@ -51,21 +51,20 @@
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-prettier": "^3.4.1",
     "jest": "^27.4.7",
-    "koishi": "^4.1.1",
     "prettier": "^2.5.1",
     "rimraf": "^3.0.2",
     "supertest": "^6.2.2",
     "ts-jest": "^27.1.3",
     "typescript": "^4.5.5"
   },
-  "peerDependencies": {
-    "koishi": "^4.1.0"
-  },
   "dependencies": {
     "@types/koa": "^2.13.4",
     "@types/koa__router": "^8.0.11",
     "lodash": "^4.17.21",
     "reflect-metadata": "^0.1.13",
     "typed-reflector": "^1.0.9"
+  },
+  "peerDependencies": {
+    "koishi": "^4.2.0"
   }
 }