cmake: Update macOS development version requirements

To be able to make use of macOS 15 features, development must use the
macOS 15 SDK and in turn Xcode 16.0 (or more recent).

cmake/macos/compilerconfig.cmake

@@ -21,8 +21,8 @@ endif()
 set_property(CACHE CMAKE_OSX_ARCHITECTURES PROPERTY STRINGS arm64 x86_64)
 
 # Ensure recent enough Xcode and platform SDK
-set(_obs_macos_minimum_sdk 14.2) # Keep in sync with Xcode
-set(_obs_macos_minimum_xcode 15.1) # Keep in sync with SDK
+set(_obs_macos_minimum_sdk 15.0) # Keep in sync with Xcode
+set(_obs_macos_minimum_xcode 16.0) # Keep in sync with SDK
 message(DEBUG "macOS SDK Path: ${CMAKE_OSX_SYSROOT}")
 string(REGEX MATCH ".+/MacOSX.platform/Developer/SDKs/MacOSX([0-9]+\\.[0-9])+\\.sdk$" _ ${CMAKE_OSX_SYSROOT})
 set(_obs_macos_current_sdk ${CMAKE_MATCH_1})