check_vault_token: print more details about the token
This MR adds more verbose output to the check_vault_token
plugin, example output:
Vault token is valid (604687s remaining)
Issue time : 2023-08-25T01:53:33.562553392-07:00
Duration : 604800
Expire time : 2023-09-01T01:53:33.562549895-07:00
Policies : kerberos-igwn_default, tokenops