What to do when VS toolset changes?

[JordanLongstaff]

Pull request #4315 changed the recommended VS build toolset in the building instructions, which gave me this build error:

CMake Error: Error: generator toolset: v143
Does not match the toolset used previously: v142
Either remove the CMakeCache.txt file and CMakeFiles directory or choose a different binary directory.

CMake Error at C:/Program Files/CMake/share/cmake-3.29/Modules/FetchContent.cmake:1702 (message):
  CMake step for imgui failed: 1
Call Stack (most recent call first):
  C:/Program Files/CMake/share/cmake-3.29/Modules/FetchContent.cmake:1854:EVAL:2 (__FetchContent_directPopulate)
  C:/Program Files/CMake/share/cmake-3.29/Modules/FetchContent.cmake:1854 (cmake_language)
  C:/Program Files/CMake/share/cmake-3.29/Modules/FetchContent.cmake:2081 (FetchContent_Populate)
  libultraship/cmake/dependencies/common.cmake:11 (FetchContent_MakeAvailable)
  libultraship/CMakeLists.txt:34 (include)

I tried removing the CMakeCache.txt file and CMakeFiles directory as suggested, but that didn't fix it. I had to delete the entire build folder and then rebuild.

Is there an easier workaround? What is the proper procedure when there's an upgrade to the VS build tools version?