MinioAdmin: conditionally decrypt response in {attach,detach}_policy APIs

[balamurugana]

No description provided.

[prakashsvmx]

Tested.

from minio.credentials import StaticProvider
from minio.minioadmin import MinioAdmin

provider = StaticProvider("minio", "minio123")

mc_admin = MinioAdmin(
    endpoint="localhost:22000",
    credentials=provider,
    secure=False, 
)
attach_res=mc_admin.attach_policy(["readonly","readwrite"],"test-user")
print(attach_res)

Output:

{"policiesAttached":["readonly","readwrite"],"updatedAt":"2025-01-07T07:59:35.837651287Z"}

➜ mc admin user add local22 test-user minio123
Added user `test-user` successfully.

 ➜ mc admin user list local22                  
enabled    test-user           
                      
# Run the above program 

 ➜ mc admin user list local22
enabled    test-user             readonly,readwrite  

[kannappanr]

what versions are we talking about?

[balamurugana]

what versions are we talking about?

@kannappanr I am not sure. Refer https://github.com/minio/madmin-go/blob/main/policy-commands.go#L270

[kannappanr]

the previous PR was tested with latest release of minio and it failed, so not sure if the title is correct