[oslo] Core reviewer changes

Hi all, Just an update on some recent changes that have been made to oslo-core after discussion among current, active cores. Added: scmcginnis Removed: ChangBo Guo(gcb) Davanum Srinivas (dims) Flavio Percoco Joshua Harlow Mehdi Abaakouk (sileht) Michael Still Victor Stinner lifeless Please let me know if anyone has any concerns about these changes. Cheers, Stephen