since clang 20 has been branched. let's track the development brach, which is clang 21. Signed-off-by: Kefu Chai <kefu.chai@scylladb.com> Closes scylladb/scylladb#22698
since clang 20 has been branched. let's track the development brach, which is clang 21. Signed-off-by: Kefu Chai <kefu.chai@scylladb.com> Closes scylladb/scylladb#22698