Update MockObject class in Widget module

[hws47a]

Description (*)

Replace outdated PSR-0 \PHPUnit_Framework_MockObject_MockObject with current PSR-2 class name \PHPUnit\Framework\MockObject\MockObject

Related Pull Requests

#26775

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)

[m2-assistant]

Hi @hws47a. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento give me test instance - deploy test instance based on PR changes
• @magento give me 2.4-develop instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Guide documentation.

[ihor-sviziev]

Hi @hws47a,
Your changes looks good
Could you fix failing static tests?

[lbajsarowicz]

For future reference: you can just remove whole doc block, as it's about either adding description or removing block

[magento-engcom-team]

Hi @lbajsarowicz, thank you for the review.
ENGCOM-6907 has been created to process this Pull Request

[ihor-sviziev]

Functional test failure isn’t related to this PR

[magento-engcom-team]

Hi @ihor-sviziev, thank you for the review.
ENGCOM-6907 has been created to process this Pull Request

[engcom-Delta]

Notice: QA not applicable

[engcom-Golf]

@magento run all tests

[m2-assistant]

Hi @hws47a, thank you for your contribution!
Please, complete Contribution Survey, it will take less than a minute.
Your feedback will help us to improve contribution process.