cnpg plugin status version doesn't update after upgrade

Hello, I recently upgraded plugin-barman cloud from 0.6.0 to 0.7.0. I'm running cnpg 1.27.0.

After the new barman-cloud pod was running, I restarted my cluster(s) so they would get the new/updated sidecar. They did, but if I view the cluster status with `kubectl cnpg status -n namespace clustername` the 'Plugin status' section still shows barman-cloud.cloudnative-pg.io with Version 0.6.0.

Start by reproducing the issue with `kubectl cnpg status -n namespace clustername` after upgrading plugin-barman-cloud from 0.6.0 to 0.7.0 and restarting the cluster. Trace the status reporting entry point in this Go repository; done means the Plugin status section reports version 0.7.0 for the running barman-cloud sidecar.

Written by the indexing model from the issue text.