Bump minimum version of PHP to 8.1

Author: nicolas-grekas

Tests/Adapter/ExtLdap/EntryManagerTest.php

@@ -60,7 +60,6 @@ public function testMoveWithRFC4514DistinguishedName(string $dn, string $expecte
         $entryManager = new EntryManager($connection);
 
         $method = (new \ReflectionClass(EntryManager::class))->getMethod('parseRdnFromEntry');
-        $method->setAccessible(true);
 
         $cn = $method->invokeArgs($entryManager, [$entry, 'a']);
 

composer.json

@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": ">=8.0.2",
+        "php": ">=8.1",
         "ext-ldap": "*",
         "symfony/options-resolver": "^5.4|^6.0"
     },