Fix wrong link in PKI menu-list
Fix wrong link in PKI menu-list

"Generate Certificate" button was linking to "sign" endpoint instead of "issue"
joelthompson/vault,quixoten/vault,kingland/vault,hartsock/vault,hartsock/vault,hashicorp/vault,rnaveiras/vault,quixoten/vault,hartsock/vault,rnaveiras/vault,kingland/vault,hashicorp/vault,hashicorp/vault,quixoten/vault,joelthompson/vault,kingland/vault,hartsock/vault,joelthompson/vault,rnaveiras/vault,hashicorp/vault,kingland/vault,kingland/vault,joelthompson/vault,hartsock/vault,hashicorp/vault,rnaveiras/vault,rnaveiras/vault,quixoten/vault,hashicorp/vault