Make generator class a readonly

Author: h1karo

src/Identifier/LaminasRandGenerator.php

@@ -24,12 +24,12 @@
 /**
  * @author Oleg Kozlov <[email protected]>
  */
-final class LaminasRandGenerator implements IdentifierGeneratorInterface
+final readonly class LaminasRandGenerator implements IdentifierGeneratorInterface
 {
     private const int MIN_LENGTH = 32;
 
     public function __construct(
-        private readonly int $length = 64,
+        private int $length = 64,
     ) {
         // @codeCoverageIgnoreStart
         if (!class_exists(Rand::class)) {

src/Identifier/UniqIdGenerator.php

@@ -23,10 +23,10 @@
  *
  * @author Oleg Kozlov <[email protected]>
  */
-final class UniqIdGenerator implements IdentifierGeneratorInterface
+final readonly class UniqIdGenerator implements IdentifierGeneratorInterface
 {
     public function __construct(
-        private readonly string $prefix = '',
+        private string $prefix = '',
     ) {}
 
     #[Override]