- Move the swh-counters's history configuration to a top level
configuration as it need to be deployed on all the environments
- Configure stating's webapp and webapp1.production to use swh-counters
as the source of the counters
- Add a history file resulting of the merge of the old
history-counters-munin.json and prometheus data issued from the
sql_swh_archive_object_count collection until 2021-04-15
- Schedule the regularly refresh of the history file in production. it
will be initially used by webapp1 only
Related to T3250