Updated EPKK to Cycle 2309

[laxentis]

As of cycle 2309, the Kraków TMA has been changed.

Description

Updated EPKK/EPKK.json

Motivation and Context

The update ensures up-to-date border highlight for EPKK_TMA

How to prove the effect of this PR?

Old TMA:

New TMA:

In short, the northwest corner has been extended towards TMA Poznań South

Is this a breaking change?

• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• [x ] My change or addition follow the formatting standard of the project.
• [x ] I am on the list of approved contributors.