fix: test failures for PhpUnit >=10

[isha689]

Fixes

Some methods have been deprecated and removed in PhpUnit 10 including assertObjectNotHasAttribute(), assertRegExp() Replacing these methods with their alternatives will lead to test failures for Php 7.2 because PHP 7.2 requires PhpUnit 8.5 and the alternative assertMatchesRegularExpression() for assertRegExp() is not supported by phpUnit 8.5

Checklist

• [x] I acknowledge that all my contributions will be made under the project's license
• [ ] I have made a material change to the repo (functionality, testing, spelling, grammar)
• [ ] I have read the Contribution Guidelines and my PR follows them
• [ ] I have titled the PR appropriately
• [ ] I have updated my branch with the main branch
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added the necessary documentation about the functionality in the appropriate .md file
• [ ] I have added inline documentation to the code I modified

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