replica/database: truncate: coroutinize run_with_compaction_disabled lambda
replica/database: truncate: coroutinize run_with_compaction_disabled lambda

Signed-off-by: Benny Halevy <23c997c90eb8537635e9392d48e7af1bf1b2ca22@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla