@emokores Not sure if the {} code is a placeholder or your actual code. If that is actual code the syntax is incorrect.
If you're using dynamic properties, do something like this...
<input :id="id" :name="name" type="file" className="sr-only" @change="handleChange" :accept="accept" />
Also, your handleChange event in the component should be emitting an event the component reference can pick up.
@change="$emit('doThing')"
@doThing="handleFiles"