When using IamAwsProvider to retrieve credentials, the address used to fetch the session token is invalid, resulting in an error.

Steps to reproduce

Run the following code snippet in an EC2 instance:

from minio.credentials.providers import IamAwsProvider
IamAwsProvider().retrieve()

Expected Behavior

The credentials should be retrieved successfully without any errors.

Actual Behavior

An exception is raised:

ValueError: http://169.254.169.254/role-name failed with HTTP status code 404

Additional Context

• EC2 instance has IMDSv2 set to Required (IMDSv1 is disabled)
• Versions: master, 7.2.11
• Related to update IamAwsProvider as per minio-go implementation #1437