Tests: Note image editor class in skipped test note.

When the image editor being used is available, it should be noted in the skipped test message.

See #63167.

git-svn-id: https://develop.svn.wordpress.org/trunk@60772 602fd350-edb4-49c9-b593-d223f7449a82

Author: desrosj

tests/phpunit/tests/image/resize.php

@@ -126,7 +126,7 @@ public function test_resize_heic() {
 
 		// Check if the editor supports the HEIC mime type.
 		if ( is_wp_error( $editor ) || ! $editor->supports_mime_type( 'image/heic' ) ) {
-			$this->markTestSkipped( 'No HEIC support in the editor engine on this system.' );
+			$this->markTestSkipped( sprintf( 'No HEIC support in the editor engine %s on this system.', $this->editor_engine ) );
 		}
 
 		$image = $this->resize_helper( $file, 25, 25 );