Merge branch '5.4' into 6.4

* 5.4:
  [PropertyInfo] Update DoctrineExtractor for new DBAL 4 BIGINT type
  Update security.nl.xlf
  [Validator] IBAN Check digits should always between 2 and 98
  [Security] Populate translations for trans-unit 20
  add missing plural translation messages
  filter out empty HTTP header parts
  [String] Fix folded in compat mode
  Remove calls to `getMockForAbstractClass()`
  [ErrorHandler] Do not call xdebug_get_function_stack() with xdebug >= 3.0 when not in develop mode
  [Serializer] Fix type for missing property
  add test for JSON response with null as content
  [Filesystem] Fix dumpFile `stat failed` error hitting custom handler
  Remove calls to `TestCase::iniSet()` and calls to deprecated methods of `MockBuilder`
  [PhpUnitBridge] Fix `DeprecationErrorHandler` with PhpUnit 10

Tests/Command/Descriptor/HtmlDescriptorTest.php

@@ -45,7 +45,7 @@ public function testItOutputsStylesAndScriptsOnFirstDescribeCall()
 
  $descriptor->describe($output, new Data([[123]]), ['timestamp' => 1544804268.3668], 1);
 
- $this->assertStringNotMatchesFormat('<style>%A</style><script>%A</script>%A', $output->fetch(), 'styles & scripts are output only once');
+ $this->assertDoesNotMatchRegularExpression('#<style>(.*?)</style><script>(.*?)</script>(.*)#', $output->fetch(), 'styles & scripts are output only once');
  }
 
  /**