[Copilot]

AsyncHttpClient exposed its request method as senRequest(), inconsistent with the expected sendRequest() API.

• API: Rename the method to sendRequest().
• Tests: Update existing call sites to use the corrected name.

$promise = $client->sendRequest($request);

• Fixes AsyncHttpClient::senRequest should be sendRequest #1374

[asika32764]

@copilot keep the wrong name senRequest still exists and deprecated it, then proxy to correct method

[Copilot]

@copilot keep the wrong name senRequest still exists and deprecated it, then proxy to correct method

Added the deprecated senRequest() compatibility proxy to sendRequest() and a regression test. Committed as 8763dad.