Refactor path handling code to use pathlib instead of strings

[przadka]

In various parts of our codebase, we are handling paths as string objects. It is recommended to use the pathlib module when dealing with paths as it provides a more readable and reliable way to handle filesystem paths. It also makes the code more object-oriented and less error-prone.

Here is an example of the current code that should be refactored:

def fix_windows_path_limit(path):
    """
    Prefix paths when running on Windows to overcome 260 character path length limit.
    See https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#maxpath

    :param path: a path to prefix
    :type path: str
    :return: a prefixed path
    :rtype: str
    """
    if platform.system() == 'Windows':
        if path.startswith('\\\\'):
            # UNC network path
            return '\\\\?\\UNC\\' + path[2:]
        elif os.path.isabs(path):
            # local absolute path
            return '\\\\?\\' + path
        else:
            # relative path, don't alter
            return path
    else:
        return path

The following classes and methods are known to require this refactor:

• def fix_windows_path_limit(path)
• class AbstractFolder and its subclasses
• class ProgressReport (potentially)
• class AbstractPath and its subclasses
• class ScanPoliciesManager
• class AbstractAction and its subclasses

This issue's resolution would involve replacing the current string path handling with pathlib objects, ensuring all related functionality remains intact.

[mjurbanski-reef]

better described, but still a duplicated of #239