adding missing tests

[Tokesh]

Description

DELETE /_search/scroll
POST /_snapshot/{repository}/{snapshot}
POST /_update_by_query/{task_id}/_rethrottle
PUT /_wlm/query_group/{name}

Issues Resolved

[#663 ]

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[github-actions]

Changes Analysis

Commit SHA: 9dedc0f
Comparing To SHA: 4231dad

API Changes

Summary

├─┬Paths
│ ├─┬/_update_by_query/{task_id}/_rethrottle
│ │ └─┬POST
│ │   └─┬Responses
│ │     └─┬200
│ │       └─┬application/json
│ │         └─┬Schema
│ │           └──[➕] properties (32056:15)
│ ├─┬/_search/scroll
│ │ └─┬DELETE
│ │   └─┬Responses
│ │     └──[➕] codes (28524:7)
│ └─┬/_search/scroll/{scroll_id}
│   └─┬DELETE
│     └─┬Responses
│       └──[➕] codes (28524:7)
└─┬Components
  └──[➕] responses (28524:7)

Document Element	Total Changes	Breaking Changes
paths	3	0
components	1	0

• Total Changes: 4
• Additions: 4

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/12410272391/artifacts/2342365934

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	541 (100.93 %)

[dblock]

Some asks below.

Throw a retry into the flaky snapshot test.

[Tokesh]

Some asks below.

Throw a retry into the flaky snapshot test.

Thank you! Ready for your review