Add identity num_entities gauge metric (#8816)
Add identity num_entities gauge metric (#8816)

Signed-off-by: Dustin Decker <d794786337aa3f9b37d4ce81320634c03467b8b1@protonmail.com>
hashicorp/vault,hashicorp/vault,rnaveiras/vault,rnaveiras/vault,hashicorp/vault,hashicorp/vault,rnaveiras/vault,rnaveiras/vault,rnaveiras/vault,hartsock/vault,hashicorp/vault,hartsock/vault,hartsock/vault,hartsock/vault,hashicorp/vault,hartsock/vault