Merge branch '5.4' into 6.2

* 5.4:
  [Tests] Replace `setMethods()` by `onlyMethods()` and `addMethods()`

Author: nicolas-grekas

Tests/Session/Storage/Handler/MemcachedSessionHandlerTest.php

@@ -45,7 +45,7 @@ protected function setUp(): void
 
         $this->memcached = $this->getMockBuilder(\Memcached::class)
             ->disableOriginalConstructor()
-            ->setMethods($methodsToMock)
+            ->onlyMethods($methodsToMock)
             ->getMock();
 
         $this->storage = new MemcachedSessionHandler(