Catch2 does not appear to work with C++23

[gmcode]

Description
Building Catch2 with C++23 (using CMake) results in build errors. It would be nice if Catch2 worke with C++23. The error appears to be because C++23 requires the full definition of a class to be defined before it can be deleted and Catch2 seems to violate this. To see the errors build Catch2 with C++23. I saw the errors using clang trunk (clang 19) against the gnu 13.2 C/C++ Runtime.
cmake -G"Ninja" -S Catch2 -B build-Catch2 -DCMAKE_CXX_COMPILER=c++23
cmake --build build-Catch2
Additional context