minor #33240 Typo - Fix bad classnames in Exceptions docblocks (Mathieudewet)

This PR was squashed before being merged into the 4.4 branch (closes #33240).

Discussion
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Typo - Fix bad classnames in Exceptions docblocks

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Set right classname in some Exceptions docblocks.

Commits
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7d1fefe8b8 Typo - Fix bad classnames in Exceptions docblocks

src/Symfony/Component/Ldap/Exception/AlreadyExistsException.php

@@ -16,6 +16,6 @@ namespace Symfony\Component\Ldap\Exception;
  *
  * @author Hamza Amrouche <hamza.simperfit@gmail.com>
  */
-class AlreadyExistsException extends ConnectionException implements ExceptionInterface
+class AlreadyExistsException extends ConnectionException
 {
 }

src/Symfony/Component/Ldap/Exception/ConnectionTimeoutException.php

@@ -12,10 +12,10 @@
 namespace Symfony\Component\Ldap\Exception;
 
 /**
- * ConnectionException is thrown if binding to ldap time out.
+ * ConnectionTimeoutException is thrown if binding to ldap time out.
  *
  * @author Hamza Amrouche <hamza.simperfit@gmail.com>
  */
-class ConnectionTimeoutException extends ConnectionException implements ExceptionInterface
+class ConnectionTimeoutException extends ConnectionException
 {
 }

src/Symfony/Component/Ldap/Exception/InvalidCredentialsException.php

@@ -12,10 +12,10 @@
 namespace Symfony\Component\Ldap\Exception;
 
 /**
- * ConnectionException is thrown if binding to ldap has been done with invalid credentials .
+ * InvalidCredentialsException is thrown if binding to ldap has been done with invalid credentials.
  *
  * @author Hamza Amrouche <hamza.simperfit@gmail.com>
  */
-class InvalidCredentialsException extends ConnectionException implements ExceptionInterface
+class InvalidCredentialsException extends ConnectionException
 {
 }