Fix MinIO monitoring
minio-operator v6.x -> v7.x removed the v1.min.io/tenant label for the minio service
which is used to discover the minio pods.
Add the v1.min.io/tenant label back
minio-operator v6.x -> v7.x removed the v1.min.io/tenant label for the minio service
which is used to discover the minio pods.
Add the v1.min.io/tenant label back