Fixed: Class `Telegram\Bot\Methods\Arr` not found

[andrey-helldar]

When trying to send a reaction to a message, this problem occurred.

$bot->api()->setMessageReaction([
    'chat_id' => $chatId,
    'message_id' => $messageId,
    'reaction' => [
       [
           'type' => 'emoji',
           'emoji' => '👍',
       ],
    ],
]);

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 42.15%. Comparing base (c72ef58) to head (0285ea1).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 3.x #1120 +/- ## ========================================= Coverage 42.15% 42.15% Complexity 608 608 ========================================= Files 131 131 Lines 1784 1784 ========================================= Hits 752 752 Misses 1032 1032 ```

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[irazasyed]

Good catch. Thanks for the PR!