[BUG] Is the wait_for option among the refresh options of Delete by query supported?

[bcc829]

Describe the bug

An error occurs if refesh=wait_for is set when requesting Delete by query.

Related component

Search

To Reproduce

1. When requesting Delete by query, set refesh=wait_for. (ex: test_index/_delete_by_query?refresh=wait_for)
2. Check if an error occurs.

{
    "error": {
        "root_cause": [
            {
                "type": "illegal_argument_exception",
                "reason": "Failed to parse value [wait_for] as only [true] or [false] are allowed."
            }
        ],
        "type": "illegal_argument_exception",
        "reason": "Failed to parse value [wait_for] as only [true] or [false] are allowed."
    },
    "status": 400
}

Expected behavior

The document for the refresh option of Delete by query(https://opensearch.org/docs/2.12/api-reference/document-apis/delete-by-query/) must be modified or wait_for must be supported.

Additional Details

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Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
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[andrross]

[Triage - attendees 1 2 3 4 5 6]
@bcc829 Thanks for filing. It does indeed look like a problem here.