AppleClang 16: suppress invalid-unevaluated-string (#4744)

Accroding to xcode 16 release notes:
https://developer.apple.com/documentation/xcode-release-notes/xcode-16-release-notes
XCode 16 supports `Unevaluated strings`

We need to suppress this warning when compiling with AppleClang >= 16

CMakeLists.txt

@@ -312,7 +312,8 @@ else()
         list(APPEND QUIC_WARNING_FLAGS -Wno-strict-aliasing)
     elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
         list(APPEND QUIC_WARNING_FLAGS -Wno-missing-braces -Wno-microsoft-anon-tag)
-        if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 18)
+        if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 18 OR
+           (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 16 AND CMAKE_CXX_COMPILER_ID MATCHES "AppleClang"))
             list(APPEND QUIC_WARNING_FLAGS -Wno-invalid-unevaluated-string)
         endif()
     endif()