Apply fixes from StyleCI

[mechelon]

This pull request applies code style fixes from an analysis carried out by StyleCI.

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[what-the-diff]

PR Summary

• New retrieve method in Page class
  This PR introduces a new function called 'retrieve' in the 'Page.php' class. This function will make it possible to get details of a specific property on a page.

• Added validations in PestHttpRecorder
  The 'PestHttpRecorder.php' class received additional validations. These validations ensure that URLs are properly formatted as an array before they are processed, helping prevent potential software crashes due to malformed input.

• Formatting condition for 'queryName' in PestHttpRecorder
  There is an added condition to make sure 'queryName', which helps query the database, is always correctly styled for intended use. This enhancement will ensure smoother operations when performing certain tasks.

• Version validation in Notion class
  The 'Notion.php' class now has an added feature to validate versions. This ensures all provided versions are correct and valid, reducing the risk of unexpected failures due to incorrect versions.

• Cleanup and Optimizations in RecordedEndpointPageTest
  In 'RecordedEndpointPageTest.php', unnecessary imports were removed to make the code cleaner and easier to understand. In addition to that, specific property keys that aren't necessary for the tests to run are now skipped, ensuring tests run smoothly and efficiently.