Bump for cmake4 compat, patch from upstream
https://sourceforge.net/p/crossfire/crossfire-client/ci/672ad8a6f5f499b7ac36b1fb8938267c5ff57e3d/

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.5)
 project(crossfire-client C)
 set(VERSION 1.75.3)