test(user_ldap): move chunking comment above loop

The comment explaining why 66640 entries force multiple chunked queries
belongs above the loop, not inside it.

Note: the implementation chunks at a 65000 total-parameter limit
(not Postgres's 65535 IN-list limit), so the comment retains 65000.

Signed-off-by: Anna Larch <anna@nextcloud.com>
AI-Assisted-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: miaulalala

apps/user_ldap/tests/Mapping/AbstractMappingTestCase.php

@@ -283,8 +283,8 @@ public function testGetListOfIdsByDn(): void {
 		[$mapper,] = $this->initTest();
 
 		$listOfDNs = [];
+		// List size exceeds the implementation's 65000-parameter chunk limit, forcing multiple chunked queries
 		for ($i = 0; $i < 66640; $i++) {
-			// List size exceeds the implementation's 65000-parameter chunk limit, forcing multiple chunked queries
 			$name = 'as_' . $i;
 			$dn = 'uid=' . $name . ',dc=example,dc=org';
 			$listOfDNs[] = $dn;