Added support for using a certificate and key, fixed /_plugins/_security/api/nodesdn.

[dblock]

Description

• Added support for using a certificate and key.
• Fixed request schema for PATCH /_plugins/_security/api/nodesdn
• Fixed response schema for GET /_plugins/_security/api/nodesdn/{cluster_name}

Issues Resolved

Part of #663.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Changes Analysis

Commit SHA: ee96bdb
Comparing To SHA: ebe0f8a

API Changes

Summary

├─┬Paths
│ ├─┬/_opendistro/_security/api/nodesdn/{cluster_name}
│ │ ├─┬GET
│ │ │ └─┬Responses
│ │ │   └─┬200
│ │ │     └─┬application/json
│ │ │       └─┬Schema
│ │ │         └──[🔀] $ref (57817:13)❌ 
│ │ ├─┬PUT
│ │ │ └─┬Responses
│ │ │   └──[➕] codes (31644:7)
│ │ └─┬PATCH
│ │   └─┬Requestbody
│ │     └─┬application/json
│ │       └─┬Schema
│ │         └──[🔀] $ref (58000:13)❌ 
│ └─┬/_plugins/_security/api/nodesdn/{cluster_name}
│   ├─┬GET
│   │ └─┬Responses
│   │   └─┬200
│   │     └─┬application/json
│   │       └─┬Schema
│   │         └──[🔀] $ref (57817:13)❌ 
│   ├─┬PUT
│   │ └─┬Responses
│   │   └──[➕] codes (31644:7)
│   └─┬PATCH
│     └─┬Requestbody
│       └─┬application/json
│         └─┬Schema
│           └──[🔀] $ref (58000:13)❌ 
└─┬Components
  ├──[➕] responses (31644:7)
  └──[➕] schemas (58000:7)

Document Element	Total Changes	Breaking Changes
paths	6	4
components	2	0

• ❌ BREAKING Changes: 4 out of 8
• Modifications: 4
• Additions: 4
• Breaking Modifications: 4

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/12321124351/artifacts/2318853319

API Coverage

	Before	After	Δ
Covered (%)	606 (59.35 %)	606 (59.35 %)	0 (0 %)
Uncovered (%)	415 (40.65 %)	415 (40.65 %)	0 (0 %)
Unknown	43	43	0

[github-actions]

Spec Test Coverage Analysis

Total	Tested
536	493 (91.98 %)

[dblock]

@Tokesh I see a 👍 but you're a maintainer here, appreciate if you could approve and merge!

[nhtruong]

@Tokesh Please double check as well :D

[Tokesh]

LGTM, brilliant work! :)