Add created_by field to connector, model, and agent API schemas

[dbwiddis]

Description

Adds the new (for 3.7.0) optional String created_by field to ML connector, model, and agent

Issues Resolved

Related code change PR:

• Add created_by field to ML resources for adoption metrics attribution ml-commons#4754

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[github-actions]

Proto Compatibility Report

Merge Report

No changes detected.

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Generated by Proto Compatibility Check

[github-actions]

Changes Analysis

Commit SHA: ca03222
Comparing To SHA: b3dea31

API Changes

Summary

└─┬Paths
  ├─┬/_plugins/_ml/agents/_register
  │ └─┬POST
  │   └─┬Request Body
  │     └─┬Content
  │       └─┬application/json
  │         └─┬Schema
  │           └──[➕] properties/created_by (31945:15)
  ├─┬/_plugins/_ml/models/_register
  │ └─┬POST
  │   └─┬Request Body
  │     └─┬Content
  │       └─┬application/json
  │         └─┬Schema
  │           └──[➕] properties/created_by (31984:15)
  └─┬/_plugins/_ml/connectors/_create
    └─┬POST
      └─┬Request Body
        └─┬Content
          └─┬application/json
            └─┬Schema
              └──[➕] properties/created_by (31641:15)

Document Element	Total Changes	Breaking Changes
paths	3	0

• Total Changes: 3
• Additions: 3

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/23816637618/artifacts/6207547278

API Coverage

	Before	After	Δ
Covered (%)	666 (65.23 %)	666 (65.23 %)	0 (0 %)
Uncovered (%)	355 (34.77 %)	355 (34.77 %)	0 (0 %)
Unknown	149	149	0