Jobs should never be negative, to mirror the behavior on the command
line for both `cmake --build` and `ctest`. This fixes unintended
behaviors where "-1" would lead to `cmake::NO_BUILD_PARALLEL_LEVEL`
being used for build presets and an integer overflow occurring for test
presets.
Bump to presets version 11 to signify the change.
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`, now with "east const" enforcement.
Use `clang-format` version 18.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
Issue: #26123
