Cover Block: Restore overflow: clip rule to allow border radius again

packages/block-library/src/cover/style.scss

@@ -9,8 +9,7 @@
 	padding: 1em;
 	// Prevent the `wp-block-cover__background` span from overflowing the container when border-radius is applied.
 	// Use clip instead of overflow: hidden so that sticky position works on child elements.
-	// Use overflow-x instead of overflow so that aspect-ratio allows content to expand the area of the cover block.
-	overflow-x: clip;
+	overflow: clip;
 	// This block has customizable padding, border-box makes that more predictable.
 	box-sizing: border-box;
 	// Keep the flex layout direction to the physical direction (LTR) in RTL languages.