fix: update namespace case in PHP SDK tests to match class definition

[devin-ai-integration]

Fix PHP SDK Namespace Case Mismatch

Problem

The PHP SDK publishing workflow was failing at the test step because of a namespace case mismatch between the test file and the class file. The test was using Lingodotdev\Sdk\LingoDotDevEngine while the actual class is defined as LingoDotDev\Sdk\LingoDotDevEngine.

Solution

Updated the namespace in the test file to match the case of the actual class definition.

This fix ensures that the PHP SDK tests can run successfully and the publishing workflow can complete without errors.

Testing

Verified locally that the fix resolves the issue by:

1. Running composer validate --no-check-publish
2. Running composer install --prefer-dist
3. Running vendor/bin/phpunit php/sdk/tests/

All tests now pass successfully.

Link to Devin run: https://app.devin.ai/sessions/6407d462e80c47b4b98a7af1e3565247
User: Max Prilutskiy (max@lingo.dev)

[devin-ai-integration]

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