update peer dep

Author: bluebill1049

package.json

@@ -23,7 +23,7 @@
   "peerDependencies": {
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
-    "react-hook-form": "^5.6.1"
+    "react-hook-form": "^6.0.0"
   },
   "dependencies": {
     "@emotion/core": "^10.0.28",