limiter: Integrate adaptive concurrency to pack-objects limiting
This is the continuation of limiter: Implement Cgroup resource watchers (!6129 - merged).
This MR integrates the adaptive concurrency to pack-objects limiting. It introduces four new configurations: Adaptive
, InitialLimit
, MaxLimit
, and MinLimit
to the corresponding config. It also hides the feature behind gitaly_adaptive_limit_pack_objects
feature flag.