Don't set reload_ts in case of node rotation

[yatsunastya]

Describe the bug
In case of node rotation, reload_ts is set to None (Setting reload_ts to None) because new node comes to the group (and new node IP "change IP"). It's necessary to compare rotation ID in skaled and upstream configs, and if they are different (which means node rotation is in progress), just don't set reload_ts.

To Reproduce
Steps to reproduce the behavior:

1. Start node rotation procedure
2. Go skale_admin logs
3. See Setting reload_ts to None for the rotating schain

Expected behavior
reload_ts is set only in case of change IP procedure.