ft: !45 Fix type of RcAccountObject.max_rc_creation_adjustment and add missing __setitem__
Connected MR: test-tools!154 (merged)
Related to: !50 (merged) and hive#540 (closed)
Originates from: https://gitlab.syncad.com/hive/hive/-/jobs/629540#L3528
Edited by Mateusz Żebrak