refactor: update default value $hashCost to 12

src/Config/Auth.php

@@ -354,14 +354,14 @@ class Auth extends BaseConfig
      * --------------------------------------------------------------------
      * The BCRYPT method of hashing allows you to define the "cost"
      * or number of iterations made, whenever a password hash is created.
-     * This defaults to a value of 10 which is an acceptable number.
+     * This defaults to a value of 12 which is an acceptable number.
      * However, depending on the security needs of your application
      * and the power of your hardware, you might want to increase the
      * cost. This makes the hashing process takes longer.
      *
      * Valid range is between 4 - 31.
      */
-    public int $hashCost = 10;
+    public int $hashCost = 12;
 
     /**
      * If you need to support passwords saved in versions prior to Shield v1.0.0-beta.4.

tests/Unit/PasswordsTest.php

@@ -52,7 +52,7 @@ public function testHash(): string
     public function testNeedsRehashTakesCareOptions(string $hashedPassword): void
     {
         $config           = new AuthConfig();
-        $config->hashCost = 12;
+        $config->hashCost = 13;
         $passwords        = new Passwords($config);
 
         $result = $passwords->needsRehash($hashedPassword);