code fixed according @todo

[magentoabu]

Description (*)

Related Pull Requests

Fixed Issues (if relevant)

1. Fixes @todo for _getFetchUpdatesByHandleSelect #38492

Manual testing scenarios (*)

1. [app/code/Magento/Widget/Model/ResourceModel/Layout/Update.php]
2. Code Issue Fixed.

Questions or comments

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)
• README.md files for modified modules are updated and included in the pull request if any README.md predefined sections require an update
• All automated tests passed successfully (all builds are green)

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[magentoabu]

@magento run all tests