support Nest.js 8 AND 9

package.json

@@ -31,15 +31,15 @@
   "author": "Nanahira <nanahira@momobako.com>",
   "license": "MIT",
   "peerDependencies": {
-    "@nestjs/common": "^8.0.0",
-    "@nestjs/core": "^8.0.0",
-    "koishi": "^4.7.5",
+    "@nestjs/common": "^9.0.3 || ^8.0.0",
+    "@nestjs/core": "^9.0.3 || ^8.0.0",
+    "koishi": "4.7.6",
     "rxjs": "^7.5.5"
   },
   "devDependencies": {
-    "@nestjs/platform-express": "^8.4.6",
-    "@nestjs/platform-fastify": "^8.4.6",
-    "@nestjs/testing": "^8.4.6",
+    "@nestjs/platform-express": "^9.0.3",
+    "@nestjs/platform-fastify": "^9.0.3",
+    "@nestjs/testing": "^9.0.3",
     "@types/jest": "^27.0.3",
     "@types/koa": "^2.13.4",
     "@types/koa-bodyparser": "^4.3.7",
@@ -61,8 +61,8 @@
     "typescript": "^4.6.4"
   },
   "dependencies": {
-    "@nestjs/platform-ws": "^8.4.6",
-    "@nestjs/websockets": "^8.4.6",
+    "@nestjs/platform-ws": "^9.0.3",
+    "@nestjs/websockets": "^9.0.3",
     "@types/ws": "^8.5.3",
     "koa": "^2.13.4",
     "koa-bodyparser": "^4.3.0",