[fix] test_locale_optimized_territory_1_fr (test_locales.TestLocales)

Unit test fails::

Traceback (most recent call last):
  File "/share/searxng/local/py3/lib/python3.10/site-packages/parameterized/parameterized.py", line 620, in standalone_func
    return func(*(a + p.args), **p.kwargs, **kw)
  File "/share/searxng/tests/unit/test_locales.py", line 121, in test_locale_optimized_territory
    self.assertEqual(locales.match_locale(locale, locale_list), expected_locale)
AssertionError: 'fr-CH' != 'fr-BE'
- fr-CH
+ fr-BE

With the babel update from 2.17.0 to 2.18.0 the population DB has been updated (the test was implemented for the old values).