Allow Label to set button component without onClick

Describe the enhancement or change
Currently, in order for a clickable Label to render with the button element in the DOM is to pass an onClick handler to it. There may be use cases where an onClick isn't desired - one example being the new Canvas pattern in Chatbot where a clickable Label opens a Popover. In this case the Popover is passed the Label as a child (rather than using triggerRefs and the Label's onClick to dictate the Popover open state).

Allowing Label to set a button element could help in those sorts of scenarios, instead of needing to pass a triggerRef, onClick to Label, and onHidden to Popover (which may result in some funky focus behavior).

Is this request originating from a Red Hat product team? If so, which ones and is there any sort of deadline for this enhancement?

Any other information?
Not blocking as there is a workaround of setting role and tabindex on a normal Label, but it lacks some focus styles and it would be better for us to support this internally with native elements.

Jira Issue: PF-4637

从 Label 组件及其现有测试入手，然后跟踪提供 onClick 时渲染元素的变化。定义一种受支持的方式来请求不带 onClick 的按钮，并验证 Label 会渲染出具有预期焦点行为的原生按钮，同时保持现有用法不变。