Relax CMake version requirements on macOS

CMakeLists.txt

@@ -796,8 +796,8 @@ endif()
 
 # Apple bundling
 if (OPENMW_OSX_DEPLOYMENT AND APPLE AND DESIRED_QT_VERSION MATCHES 5)
-    if (${CMAKE_MAJOR_VERSION} STREQUAL "3" AND ${CMAKE_MINOR_VERSION} STREQUAL "13")
-        message(FATAL_ERROR "macOS packaging is broken in CMake 3.13.*, see https://gitlab.com/OpenMW/openmw/issues/4767. Please use an older version like 3.12.4")
+    if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.13 AND CMAKE_VERSION VERSION_LESS 3.13.4)
+        message(FATAL_ERROR "macOS packaging is broken in early CMake 3.13 releases, see https://gitlab.com/OpenMW/openmw/issues/4767. Please use at least 3.13.4 or an older version like 3.12.4")
     endif ()
 
     get_property(QT_COCOA_PLUGIN_PATH TARGET Qt5::QCocoaIntegrationPlugin PROPERTY LOCATION_RELEASE)