[Fix] no-unknown-property: add fetchPriority

- DefinitelyTyped/DefinitelyTyped#68645
- https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/fetchpriority

Author: SevereCloud

lib/rules/no-unknown-property.js

@@ -257,7 +257,7 @@ const DOM_PROPERTY_NAMES_TWO_WORDS = [
   'onError', 'onFocus', 'onInput', 'onKeyDown', 'onKeyPress', 'onKeyUp', 'onLoad', 'onWheel', 'onDragOver',
   'onDragStart', 'onDrop', 'onMouseDown', 'onMouseEnter', 'onMouseLeave', 'onMouseMove', 'onMouseOut', 'onMouseOver',
   'onMouseUp', 'onPaste', 'onScroll', 'onSelect', 'onSubmit', 'onToggle', 'onTransitionEnd', 'radioGroup', 'readOnly', 'referrerPolicy',
-  'rowSpan', 'srcDoc', 'srcLang', 'srcSet', 'useMap',
+  'rowSpan', 'srcDoc', 'srcLang', 'srcSet', 'useMap', 'fetchPriority',
   // SVG attributes
   // See https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute
   'crossOrigin', 'accentHeight', 'alignmentBaseline', 'arabicForm', 'attributeName',