Windows CI fails to build

[kintel]

The Windows GitHub action Windows(msys2) Experimental Tests fails to build:

D:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/include/clipper2/clipper.core.h:181:22: note: remove the '< >'
cc1plus.exe: all warnings being treated as errors
[2/284] Building CXX object _deps/clipper2-build/CMakeFiles/Clipper2.dir/Clipper2Lib/src/clipper.engine.cpp.obj
FAILED: _deps/clipper2-build/CMakeFiles/Clipper2.dir/Clipper2Lib/src/clipper.engine.cpp.obj 
D:\a\_temp\msys64\ucrt64\bin\c++.exe -DCLIPPER2_MAX_PRECISION=8 -ID:/a/openscad/openscad/build/_deps/clipper2-build -ID:/a/openscad/openscad/build/_deps/clipper2-src/CPP -ID:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/include -frounding-math -Wno-attributes -O3 -DNDEBUG -std=c++17 -Wall -Wextra -Wpedantic -Werror -MD -MT _deps/clipper2-build/CMakeFiles/Clipper2.dir/Clipper2Lib/src/clipper.engine.cpp.obj -MF _deps\clipper2-build\CMakeFiles\Clipper2.dir\Clipper2Lib\src\clipper.engine.cpp.obj.d -o _deps/clipper2-build/CMakeFiles/Clipper2.dir/Clipper2Lib/src/clipper.engine.cpp.obj -c D:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/src/clipper.engine.cpp
In file included from D:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/include/clipper2/clipper.engine.h:22,
                 from D:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/src/clipper.engine.cpp:17:
D:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/include/clipper2/clipper.core.h:181:22: error: template-id not allowed for constructor in C++20 [-Werror=template-id-cdtor]
  181 |     explicit Point<T>(const Point<T2>& p) { Init(p.x, p.y); }
      |                      ^
D:/a/openscad/openscad/build/_deps/clipper2-src/CPP/Clipper2Lib/include/clipper2/clipper.core.h:181:22: note: remove the '< >'
cc1plus.exe: all warnings being treated as errors

This looks like AngusJohnson/Clipper2#823, and it looks like Manifold pulls an older version of Clipper2.
Opened Manifold issue: elalish/manifold#814