Windows/macOS CI broken

[yvt]

https://github.com/yvt/openspades/actions/runs/3255103381 (2022-10-15)

  CMake Error at vcpkg/scripts/buildsystems/vcpkg.cmake:824 (_find_package):
    Could not find a package configuration file provided by "Ogg" with any of
    the following names:
  
      OggConfig.cmake
      ogg-config.cmake
  
    Add the installation prefix of "Ogg" to CMAKE_PREFIX_PATH or set "Ogg_DIR"
    to a directory containing one of the above files.  If "Ogg" provides a
    separate development package or SDK, be sure it has been installed.
  Call Stack (most recent call first):
    CMakeLists.txt:24 (find_package)
  
  
  -- Configuring incomplete, errors occurred!
  See also "D:/a/openspades/openspades.mk/CMakeFiles/CMakeOutput.log".
  Error: The process 'C:\Program Files\CMake\bin\cmake.exe' failed with exit code 1

The last successful run: https://github.com/yvt/openspades/actions/runs/3031161091 (2022-09-11)