test: fix official holidays tests for Portugal

All Saints Day was incorrectly set to be present between 2013 and 2015.
This is incorrect as between 2013 and 2015 (inclusive) this holiday did
not happen due to government deliberation.

Signed-off-by: Sacha Telgenhof <me@sachatelgenhof.com>

tests/Portugal/PortugalTest.php

@@ -51,14 +51,17 @@ public function testOfficialHolidays(): void
             'easter',
             'goodFriday',
             'assumptionOfMary',
-            'allSaintsDay',
             'immaculateConception',
             'christmasDay',
             '25thApril',
             'restorationOfIndependence',
             'portugalDay',
         ];
 
+        if ($this->year <= 2012 || $this->year >= 2016) {
+            $holidays[] = 'allSaintsDay';
+        }
+
         if (($this->year >= 1910 && $this->year <= 2012) || $this->year >= 2016) {
             $holidays[] = 'portugueseRepublic';
         }