Added endpoint and version attributes to KMS details

[shtripat]

Description

Now it would list details of all KMS instances with additional attributes endpoint and version. In case of k8s based deployment the list would consist a single entry.

Motivation and Context

In case there are multiple instances of KES deployed and they have different versions, this would make sure details are listed at instance level.

How to test this PR?

mc admin info ALIAS --json should show .info.services.kmsStatus as below

$ ./mc admin info myminio --json | jq '.info.services.kmsStatus'
[
  {
    "status": "online",
    "encrypt": "success",
    "decrypt": "success",
    "endpoint": "https://127.0.0.1:7373",
    "version": "2023-05-11T04-04-40Z"
  },
  {
    "status": "online",
    "encrypt": "success",
    "decrypt": "success",
    "endpoint": "https://127.0.0.1:7474",
    "version": "2023-05-11T04-04-40Z"
  }
]

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Optimization (provides speedup with no functional changes)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• Fixes a regression (If yes, please add commit-id or PR # here)
• Unit tests added/updated
• Internal documentation updated
• Create a documentation update request here