[Tests] Replace setMethods() by onlyMethods() and addMethods()

Author: alexandre-daubois

Tests/EventListener/VoteListenerTest.php

@@ -26,7 +26,7 @@ public function testOnVoterVote()
         $traceableAccessDecisionManager = $this
             ->getMockBuilder(TraceableAccessDecisionManager::class)
             ->disableOriginalConstructor()
-            ->setMethods(['addVoterVote'])
+            ->onlyMethods(['addVoterVote'])
             ->getMock();
 
         $traceableAccessDecisionManager