Mismatched "Tested up to" header between Plugin Header and Readme

[ernilambar]

Problem

The "Tested up to" header can exist in both:

• The plugin's main file header
• The plugin's readme file

Currently, there is no validation to ensure these values match when both are present.

Effect

If the "Tested up to" value exists in the plugin header, it could override or conflict with the correct value from the readme file. This can lead to:

• Inconsistent version information
• Confusion about which value is authoritative

Expected Behavior

If "Tested up to" exists in both locations, they must be exactly the same.

[davidperezgar]

Wow, I thought it was already that check. Yes, definitely it has to be this check.