Still respect to CMake variable CMAKE_BUILD_TYPE in scripts when use CMakePresets.json

[msclock]

Hi, thanks for this awesome cmake tools plugin. I always like it.

I noticed vscode launch button didn't work because there must exist CMAKE_BUILD_TYPE in CMakePresets.json even if CMAKE_BUILD_TYPE explicitly set in cmake scripts. please refer to repro code hash serious-scaffold/ss-cpp@b800fa5.

And I think respect to CMAKE_BUILD_TYPE in cmake scripts when use CMakePresets.json may be a workaround.

Related #3643, #2039