[Bug]: Metadata cannot be obtained properly when using Azure AI

[rkgo55]

Description

Hello, this library always helps me

The metadata is retrieved from the header, but it doesn't seem to be parsed properly.
The azure AI header looks like this: (notice: The type is different from that of openAI)

array:14 [ // vendor/openai-php/client/src/Responses/Meta/MetaInformation.php:31
~ Omitted ~
  "x-ratelimit-remaining-requests" => array:1 [
    0 => INT
  ]
  "x-ratelimit-remaining-tokens" => array:1 [
    0 => INT
  ]
~ Omitted ~
]

Steps To Reproduce

• Load dump into MetaInformation
• version: 2023-10-01-preview

$response = $client->chat()->create([
'messages' => [
['role' => 'system', 'content' => 'hello'],
],
]);

OpenAI PHP Client Version

0.8.0

PHP Version

8.1.13

Notes

No response

[rkgo55]

For those who are having trouble with this bug
You can avoid it using the method below.
#218 (comment)

[gehrisandro]

Fixed #307