fix: remove service dependency from sanitize_filename() helper function

[michalsn]

Description
This PR fixes a bug where the sanitize_filename() helper function could not be used in CLI requests.

The sanitize_filename() function in the Security helper now contains the logic that was previously in the Security::sanitizeFilename() method. The method has been updated to delegate to the helper function, reversing the previous dependency. This change allows the function to be used in CLI requests without relying on the service.

Fixes: #9555

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[paulbalandan]

Should the method be deprecated as it is just an exact copy?

[michalsn]

I was thinking about this because if you look at the methods that are available and the user guide itself, IMO, this method is added a bit by force.

On the other hand, it is listed in SecurityInterface, so I am not sure if we should deprecate it.

[paulbalandan]

In my opinion, if the Security component is meant for HTTP requests and sanitizeFilename() can be used for both HTTP and CLI requests (as its logic has no specific dependence on HTTP requests), I think its presence as an API method is a misuse. Maybe it was added before as a utility method. I'm in favor of deprecating it both in the class and interface. But, let's hear what others think of this.

[michalsn]

With no additional feedback, I've marked sanitizeFilename as deprecated in both the class and the interface.

[michalsn]

Thank you @samsonasik and @paulbalandan