Fixes some more typos as found by codespell run on the code. In this commit, there are more user-visible errors. Refs: https://github.com/scylladb/scylladb/issues/16255 Closes scylladb/scylladb#16289 * github.com:scylladb/scylladb: Update unified/build_unified.sh Update main.cc Update dist/common/scripts/scylla-housekeeping Typos: fix typos in code