fix(runtime-core): only update existing props

[edison1105]

close #5520

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[ygj6]

Look at #5517.

[edison1105]

Look at #5517.

Oh～ I didnot see that one.😅

[iwusong]

你这个有一些问题

增加 && hasOwn(options, (camelizedKey = camelize(key))) 的条件后 ，下面的

  if (hasOwn(attrs, key)) {
            if (value !== attrs[key]) {
              attrs[key] = value
              hasAttrsChanged = true
            }

似乎永远也执行不到.
而且事件监听都会在else中被添加的attrs，即使在组件中的emits options中声明也无效