Update Selenium packages for Null Pointer vulnerability

[egottliebq2]

Description

A null pointer vulnerability was found in Selenium in versions prior to 4.14.0 and fixed in version 4.14.1. Updated the corresponding Selenium packages to the latest stable version and corrected the obsoletion of ScreenshotImageFormat that occurred in version 4.14.1 to keep current compatibility and limit changes.

Changes

• Updated Selenium.Support and Selenium.Webdriver to Version 4.28.0
• ScreenshotImageFormat is obsolete within OpenQA.Selenium as of v4.14.0. Adjusted use-cases for screenshot image formatting to append the string format to the end of the file path. Adjusted corresponding unit tests to match new method conditions.

Testing

Unit Tests

Checklist

• I agree to follow Boa Constrictor's Code of Conduct.
• I read Boa Constrictor's Contributing Code guide.
• I successfully built the .NET solution with no errors or new warnings.
• I successfully ran both the unit tests and the example tests.
• I updated the appropriate changelogs with concise descriptions of these changes.
• I added documentation for these changes (if appropriate).