bug #26289 [Security] Add missing use of Role (tony-tran)

This PR was merged into the 4.0 branch.

Discussion
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[Security] Add missing use of Role

| Q             | A
| ------------- | ---
| Branch?       | 4.0 to master
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Same as [here](https://github.com/symfony/symfony/pull/26286) but this time for 4.0

Commits
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3cfe7d0 Add missing use of Role

src/Symfony/Component/Security/Core/Authentication/Token/PreAuthenticatedToken.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Security\Core\Authentication\Token;
 
-use Symfony\Component\Security\Core\Role\RoleInterface;
+use Symfony\Component\Security\Core\Role\Role;
 
 /**
  * PreAuthenticatedToken implements a pre-authenticated token.

src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Security\Core\Authentication\Token;
 
+use Symfony\Component\Security\Core\Role\Role;
+
 /**
  * UsernamePasswordToken implements a username and password token.
  *