Improve arguments validation + Minor refactoring + Psalm 1

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

[what-the-diff]

PR Summary

• Introduction of Branch Filter for Push Events
  Added functionality that allows the GitHub Actions workflow to filter out certain branches for push events. This could help your team control and manage the code pushed into different branches.

• Expansion of PHP Version Compatibility
  The PHP static analysis job has been updated to broaden the PHP version compatibility. It now includes support for versions 8.0, 8.1, 8.2, and 8.3. This widens user accessibility by ensuring the code runs on multiple PHP versions.

• Addition of New Configuration File for Static Analyzer
  Introduced a new configuration file for Psalm static analyzer, which is a tool used to find errors in PHP applications. This helps to maintain code quality and avoid potential issues.

• Update of Package Version Requirements
  Upgraded requirements for vimeo/psalm package to the newer version (5.22). This update provides more updated features and fixes from the package.

• Reduced Error Level for Static Analyzer
  The error level attribute has been decreased in the Psalm configuration file. This means the static analyzer will now report fewer types of potential errors. This is done to focus on more critical issues and reduce noise from less important warnings.

• New Server Type Added
  A new server type has been added to the Memcached.php script. This offers more options to decide where and how to deploy your application.

• Improvements in the Handling of Data Types
  Updated several methods in Memcached.php script, enabling them to handle more extensive data types. This improves robustness and flexibility of the code in managing data.

• Addition of Test Case
  A new test case added to MemcachedTest.php ensures that the code behaves as expected when dealing with non-string keys. This improves reliability of the code by validating this specific scenario.