Added foreach loop wrapper

Gutenberg/check-inner-blocks.php

@@ -1,4 +1,14 @@
-        // Check if the block is a 'core/post-featured-image'
+foreach ( $inner_blocks as $block ) {
 		if ( 'core/post-featured-image' === $block->name ) {
-            return true;  // Found a block using the featured image
+			return true;
+		}
+		if (
+			'core/cover' === $block->name &&
+			! empty( $block->attributes['useFeaturedImage'] )
+		) {
+			return true;
+		}
+		if ( $block->inner_blocks && block_core_post_template_uses_featured_image( $block->inner_blocks ) ) {
+			return true;
+		}
 	}