cmake: Reduce minimum CMake version from 3.25 to 3.22 (#5890)

There isn't anything in 3.25 that we actually need, so we can reduce the minimum requirement. 3.22 is commonly available across many package managers.

For a list of the changes in `FetchContent`, see:
https://cmake.org/cmake/help/latest/module/FetchContent.html

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.25)
+cmake_minimum_required(VERSION 3.22)
 #this change avoid the warning that appear when we include raylib using Cmake fatch content 
 project(raylib)