Fixed the wrong code style in return type declaration

[andrewbess]

Description (*)

This pull request (PR) fixes the wrong code style of the return type declaration

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

Resolved issues:

1. resolves [Issue] Fixed the wrong code style in return type declaration #29712: Fixed the wrong code style in return type declaration

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[andrewbess]

@magento run all tests

[sidolov]

QA not required.

[magento-engcom-team]

Hi @sidolov, thank you for the review.
ENGCOM-8053 has been created to process this Pull Request

[engcom-Alfa]

QA not applicable

[engcom-Charlie]

@magento create issue

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