Merge branch '6.4' into 7.0

* 6.4:
  Fix CI
  Bump ext-redis in CI on PHP >= 8.4
  Adjust pretty name of closures on PHP 8.4
  implement NodeVisitorInterface instead of extending AbstractNodeVisitor
  sync .github/expected-missing-return-types.diff
  skip test assertions that are no longer valid with PHP >= 8.2.18/8.3.5

Author: nicolas-grekas

Tests/ErrorHandlerTest.php

@@ -161,7 +161,7 @@ public function testCallErrorExceptionInfo()
             $this->assertSame('Undefined variable $foo', $e->getMessage());
             $this->assertSame(__FILE__, $e->getFile());
             $this->assertSame(0, $e->getCode());
-            $this->assertSame('Symfony\Component\ErrorHandler\{closure}', $trace[0]['function']);
+            $this->assertStringMatchesFormat('%A{closure%A}', $trace[0]['function']);
             $this->assertSame(ErrorHandler::class, $trace[0]['class']);
             $this->assertSame('triggerNotice', $trace[1]['function']);
             $this->assertSame(__CLASS__, $trace[1]['class']);