Fix: remove the CMAKE_OSX_DEPLOYMENT_TARGET auto detect by CMake

conan_provider.cmake

@@ -50,7 +50,7 @@ function(detect_os OS OS_API_LEVEL OS_SDK OS_SUBSYSTEM OS_VERSION)
                 message(STATUS "CMake-Conan: cmake_osx_sysroot=${CMAKE_OSX_SYSROOT}")
                 set(${OS_SDK} ${_OS_SDK} PARENT_SCOPE)
             endif()
-            if(DEFINED CMAKE_OSX_DEPLOYMENT_TARGET)
+            if(DEFINED CONAN_CUSTOM_CMAKE_OSX_DEPLOYMENT_TARGET)
                 message(STATUS "CMake-Conan: cmake_osx_deployment_target=${CMAKE_OSX_DEPLOYMENT_TARGET}")
                 set(${OS_VERSION} ${CMAKE_OSX_DEPLOYMENT_TARGET} PARENT_SCOPE)
             endif()
@@ -620,6 +620,10 @@ set(CONAN_HOST_PROFILE "default;auto-cmake" CACHE STRING "Conan host profile")
 set(CONAN_BUILD_PROFILE "default" CACHE STRING "Conan build profile")
 set(CONAN_INSTALL_ARGS "--build=missing" CACHE STRING "Command line arguments for conan install")
 
+if(DEFINED CMAKE_OSX_DEPLOYMENT_TARGET)
+    set(CONAN_CUSTOM_CMAKE_OSX_DEPLOYMENT_TARGET CMAKE_OSX_DEPLOYMENT_TARGET)
+endif ()
+
 find_program(_cmake_program NAMES cmake NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_CMAKE_SYSTEM_PATH NO_CMAKE_FIND_ROOT_PATH)
 if(NOT _cmake_program)
     get_filename_component(PATH_TO_CMAKE_BIN "${CMAKE_COMMAND}" DIRECTORY)