feat: backup previous password, change password via personal data form

tests/Service/PasswordResetManagerTest.php

@@ -145,6 +145,7 @@ class PasswordResetManagerTest extends TestCase
     {
         $user = new User('[email protected]');
         $user->setPasswordResetNonce('current-nonce');
+        $user->setPreviousPassword('legacy-backup');
 
         $userRepository = $this->createMock(UserRepository::class);
         $entityManager = $this->createMock(EntityManagerInterface::class);
@@ -167,6 +168,7 @@ class PasswordResetManagerTest extends TestCase
         $manager->resetPassword($user, 'new-password');
 
         self::assertSame('hashed-password', $user->getPassword());
+        self::assertSame('legacy-backup', $user->getPreviousPassword());
         self::assertNotSame('current-nonce', $user->getPasswordResetNonce());
         self::assertMatchesRegularExpression('/^[a-f0-9]{64}$/', (string) $user->getPasswordResetNonce());
     }