Merge branch '7.4' into 8.0

* 7.4:
  skip legacy extractor test with symfony/property-info 8.0+
  chore: heredoc indentation as of PHP 7.3
  [Actions] remove dead code from integration-test We can always revisit later if needed.From 2021 its there and not in use

Author: nicolas-grekas

Tests/ChatworkMessageBodyBuilderTest.php

@@ -52,10 +52,10 @@ public function testGetMessageBody()
         ;
 
         $expectedBody = <<<EOT
-[To:abc]
-[To:def]
-test body
-EOT;
+            [To:abc]
+            [To:def]
+            test body
+            EOT;
         $expected = [
             'body' => $expectedBody,
             'self_unread' => true,