upgrade to rc-menu 9.0.0

Author: afc163

package.json

@@ -76,8 +76,8 @@
   "dependencies": {
     "@babel/runtime": "^7.11.2",
     "classnames": "2.x",
-    "rc-dropdown": "^3.1.3",
-    "rc-menu": "^9.0.0-alpha.7",
+    "rc-dropdown": "^3.2.0",
+    "rc-menu": "^9.0.0",
     "rc-resize-observer": "^1.0.0",
     "rc-util": "^5.5.0"
   },