Merge branch '4.4' into 5.2

* 4.4:
  [HttpKernel] fix transient test
  [FrameworkBundle] Fix freshness checks with boolean parameters on routes
  [FrameworkBundle] fix registering "annotations.cache" on the "container.hot_path"
  Add some information about the username in CONTRIBUTORS

Author: nicolas-grekas

Tests/KernelTest.php

@@ -17,6 +17,7 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
+use Symfony\Component\Filesystem\Exception\IOException;
 use Symfony\Component\Filesystem\Filesystem;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -36,8 +37,10 @@ class KernelTest extends TestCase
 {
     protected function tearDown(): void
     {
-        $fs = new Filesystem();
-        $fs->remove(__DIR__.'/Fixtures/var');
+        try {
+            (new Filesystem())->remove(__DIR__.'/Fixtures/var');
+        } catch (IOException $e) {
+        }
     }
 
     public function testConstructor()
@@ -473,7 +476,7 @@ public function testProjectDirExtension()
 
     public function testKernelReset()
     {
-        (new Filesystem())->remove(__DIR__.'/Fixtures/var/cache');
+        $this->tearDown();
 
         $kernel = new CustomProjectDirKernel();
         $kernel->boot();