Fixed POST and DELETE /_dangling/{index_uuid} returning 202

[dblock]

Description

• Added a cookbook for creating a Docker container with a dangling index (thanks a million @AmiStrn and @andrross, everyone should watch https://www.youtube.com/watch?v=SWjCq0xTN7w).
• Fixed POST and DELETE /_dangling/{index_uuid} returning 202.

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[github-actions]

Changes Analysis

Commit SHA: f6b8a43
Comparing To SHA: 7e4e18e

API Changes

Summary

├─┬Paths
│ └─┬/_dangling/{index_uuid}
│   ├─┬POST
│   │ └─┬Responses
│   │   ├──[➕] codes (28419:7)
│   │   └──[➖] codes (28419:7)❌ 
│   └─┬DELETE
│     └─┬Responses
│       ├──[➕] codes (28413:7)
│       └──[➖] codes (28413:7)❌ 
└─┬Components
  ├──[➖] responses (28413:7)❌ 
  ├──[➖] responses (28419:7)❌ 
  ├──[➕] responses (28419:7)
  └──[➕] responses (28413:7)

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

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

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/11956880138/artifacts/2219662824

API Coverage

	Before	After	Δ
Covered (%)	599 (58.67 %)	599 (58.67 %)	0 (0 %)
Uncovered (%)	422 (41.33 %)	422 (41.33 %)	0 (0 %)
Unknown	42	42	0

[github-actions]

Spec Test Coverage Analysis

Total	Tested
528	372 (70.45 %)