Introduce two new Prometheus metrics sourced from the Barman Cloud plugin:
- `barman_cloud_cloudnative_pg_io_first_recoverability_point`
- `barman_cloud_cloudnative_pg_io_last_available_backup_timestamp`
These metrics supersede the following deprecated CNPG metrics:
- `cnpg_collector_first_recoverability_point`
- `cnpg_collector_last_available_backup_timestamp`
Depends on: https://github.com/cloudnative-pg/cloudnative-pg/pull/8033
Relates to: #380
Signed-off-by: Armando Ruocco <armando.ruocco@enterprisedb.com>
Signed-off-by: Leonardo Cecchi <leonardo.cecchi@enterprisedb.com>
Co-authored-by: Leonardo Cecchi <leonardo.cecchi@enterprisedb.com>
