fix: pi_uxarray.tar URL in pycmor-test-data-fesom package is dead

[pgierz]

Problem

The fesom_dev model (from external pycmor-test-data-fesom package) still references the old Nextcloud share URL for pi_uxarray.tar:

https://nextcloud.awi.de/s/swqyFgbL2jjgjRo/download/pi_uxarray.tar  (404)

The correct URL is:

https://nextcloud.awi.de/s/o2YQy2i9BR97Rge/download/pi_uxarray.tar

This was fixed in the main pycmor repo (tests/fixtures/example_data/test_data_registry.yaml and pi_uxarray.py), but the external package needs updating too.

Affected tests

All fesom_dev integration tests in test_model_runs.py fail with HTTPError: 404.

Fix

Update the URL in pycmor-test-data-fesom and publish a new version.