Update documentation on the MC/DC checker

[thomaswucher]

A new version of the MC/DC checker has been released which makes patching unnecessary.

Should you encounter any future issues with the MC/DC checker, you are very welcome to open issues or send pull requests at https://gitlab.com/gtd-gmbh/mcdc-checker/mcdc-checker instead of carrying custom patches.

[Bckempa]

Thanks for the update, @thomaswucher! We're discussing how the bump in LLVM/Clang version requirement impacts our usage in our technical meeting

[EzraBrooks]

My only concern, as someone who hasn't used this tool, is that Clang 19 is pretty new - it's not in an Ubuntu LTS yet, right?

[thomaswucher]

Previously the MCDC checker docker image shipped with a patched Clang and the SpaceROS documentation recommended to apply a custom patch to the MCDC checker itself within the container. The need for both patches is gone, but they are completely independent of each other. To the end user it doesn't really matter what version of Clang ships in the MCDC checker container. The important part for the user is that the custom patch for SpaceROS compatibility isn't needed anymore, making the tool much easier to use, by just using the docker image as provided.

[EzraBrooks]

Sorry for letting this sit for so long. I haven't had much resources to contribute to the project again until recently.