rust/Cargo.toml locks the cxx packages to version 1.0.83,
but install-dependencies.sh does not lock cxxbridge-cmd, part
of that ecosystem. Since cxx 1.0.189 broke compatibility with
1.0.83 (understandable, as these are all sub-packages of a single
repository), builds with newer cxxbridge-cmd are broken.
Fix by locking cxxbridge-cmd to the same version as the other
cxx subpackages.
Regenerated frozen toolchain with optimized clang from
https://devpkg.scylladb.com/clang/clang-20.1.8-Fedora-42-aarch64.tar.gzhttps://devpkg.scylladb.com/clang/clang-20.1.8-Fedora-42-x86_64.tar.gz
Probably better done by building cxxbridge-cmd during the build
itself, but that is a deeper change.
Fixes#27176Closesscylladb/scylladb#27177
eb5e9f728c