fix(runtime-core): fix event listener is added erroneously to instance's props

fix #5520

Author: iwusong

packages/runtime-core/src/componentProps.ts

@@ -224,6 +224,11 @@ export function updateProps(
       const propsToUpdate = instance.vnode.dynamicProps!
       for (let i = 0; i < propsToUpdate.length; i++) {
         let key = propsToUpdate[i]
+      // if the prop key is a declared emit event listener.
+      // use continue to skip this prop
+        if (isEmitListener(instance.emitsOptions, key)){
+          continue
+        }
         // PROPS flag guarantees rawProps to be non-null
         const value = rawProps![key]
         if (options) {