fix: Slider: "Unable to preventDefault inside passive event listener invocation" in primevue_slider.js (touchmove)

[caryhgq]

This PR fixes #5745.

The event.preventDefault() method has been removed.

The touch event uses the .passive modifier, and also uses the preventDefault method. On mobile devices, the browser will report an error.

The official documentation for Vue.js is as follows:

https://vuejs.org/guide/essentials/event-handling.html#event-modifiers

Do not use .passive and .prevent together, because .passive already indicates to the browser that you do not intend to prevent the event's default behavior, and you will likely see a warning from the browser if you do so.

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