test: don't assert filesystem order in LocalesManagerTest.testGetAvailableLocales

The unsorted getAvailableLocales(false) list comes from File.listFiles(), whose
order is not guaranteed and varies by OS/filesystem. The test asserted fr_FR was
first, which failed on CI where en_US is listed first. Assert that both locales
are present (size + contains) instead, and keep the deterministic ordering
assertions for the sorted list.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: tastybento

src/test/java/world/bentobox/bentobox/managers/LocalesManagerTest.java

@@ -229,11 +229,13 @@ void testGetAvailableLocales() throws IOException {
         makeFakeLocaleFile();
         LocalesManager lm = new LocalesManager(plugin);
 
-        // Unsorted
+        // Unsorted - only verify both locales are present, not their order. The unsorted order
+        // comes from File.listFiles(), which is not guaranteed and varies by OS/filesystem.
         List<Locale> localeList = lm.getAvailableLocales(false);
-        assertEquals(Locale.FRANCE, localeList.getFirst());
-        assertEquals(Locale.US, localeList.get(1));
-        // Sorted
+        assertEquals(2, localeList.size());
+        assertTrue(localeList.contains(Locale.FRANCE));
+        assertTrue(localeList.contains(Locale.US));
+        // Sorted - order is deterministic, the en-US default comes first
         localeList = lm.getAvailableLocales(true);
         assertEquals(Locale.US, localeList.getFirst());
         assertEquals(Locale.FRANCE, localeList.get(1));