Add clang-tidy in clang images

[kuznetsss]

Also add clang-21 images.

[mathbunnyru]

You either need to provide separate LLVM_VERSION, or remove it

[bthomee]

I propose to revert this change, since we don't need clang-tidy in all Ubuntu images. Instead, I'd like you to create a separate tools-rippled-clang-tidy image for this. We already have similar tools-rippled-clang-format, for instance.

[kuznetsss]

@bthomee, but we need all the tools from a regular image to be able to generate compile_commangs.json. Creating a separate image will require to make another duplication of docker file. But having clang-tidy in each image doesn't do any harm except small size increase.