Release Notes

from：release/ver-2.6.0.4 to：release/ver-2.6.0.6

FIX BUGS: fix: multi group by calc key error (#14052) fix: offset optimization order by desc calc skip block error(#14027) fix: Remove install warning for red hat (#14019) fix: added upstream check to avoid crash (#13894) fix: fixed group by col_proj_function des error on client (#13821) fix: taosdump incorrect count when dump in (#13815) fix: super table info not removed after dropped by another client (#13666) fix: fixed related query error caused by tag mismatch (#13308)

ENHANCEMENTS: enh:change master/slave to leader/follower (#14190) feat: added bitwise operations (#13306) feat: support case sensitive and CN names of db, stable, column, tags and so on (#13866)