Ticket 50062 - Replace error by warning in the state machine defined in repl5_inc_run
Description: Replace error log severity message from ERR to WARNING
https://pagure.io/389-ds-base/issue/50062
Reviewed by: mreynolds(one line commit rule)
(cherry picked from commit bae33f97c05932c95225beb2dd2b6f76c1970bef)