chore: fix cgl issues flagged by phpstan

src/Service/DatabaseAnonymizer.php

@@ -48,6 +48,9 @@ class DatabaseAnonymizer
         $this->identitySequence = 0;
     }
 
+    /**
+     * @return array{users: int, newsletterConsents: int, newsletterOptInRequests: int, bookingEditDrafts: int}
+     */
     public function anonymizeAll(int $batchSize = self::DEFAULT_BATCH_SIZE): array
     {
         if ($batchSize < 1) {
@@ -405,6 +408,9 @@ class DatabaseAnonymizer
         return null !== $this->stringOrNull($value);
     }
 
+    /**
+     * @param array<string, string> $identity
+     */
     private function placeholderText(array $identity, string $suffix): string
     {
         return sprintf('%s-%s', $identity['lastName'], $suffix);