attract: rebuild for SFML-2.6.1

Co-authored-by: John <me@johnnynator.dev>

srcpkgs/attract/patches/null.patch

@@ -0,0 +1,11 @@
+--- a/extlibs/gameswf/gameswf/gameswf_sprite.cpp	2022-02-16 03:30:39.000000000 +0100
++++ -	2023-12-06 00:05:49.469776618 +0100
+@@ -170,7 +170,7 @@
+ 	// none.  Coords are in parent's frame.
+ 	{
+ 		if (get_visible() == false) {
+-			return NULL;
++			return false;
+ 		}
+ 
+ 		matrix	m = get_matrix();

srcpkgs/attract/template

@@ -1,7 +1,7 @@
 # Template file for 'attract'
 pkgname=attract
 version=2.6.2
-revision=1
+revision=2
 build_style=gnu-makefile
 make_build_args="VERBOSE=1"
 make_use_env=yes