Merge branch '7.4' into 8.0

* 7.4: (28 commits)
  [Console] Rename `#[Input]` to `#[MapInput]`
  [FrameworkBundle] Fix support of dumping workflow when workflow is decorated by TraceableWorkflow
  [JsonStreamer] Fix documentation link in README
  [Meta] Better exception when symfony link cannot read a JSON
  [Form] Add new `active_at`, `not_active_at` and `legal_tender` options to `CurrencyType`
  [Intl] Support time in generated data in currencies validity
  [Validator] Improve and complete Japanese translations
  [HtmlSanitizer] Remove redundant assignment to promoted property $config in constructor
  [Validator] Fix Polish translation for word count validation message
  [DependencyInjection][Routing] Deprecate XML configuration format
  [Validator] Review and fix Czech translation
  [DependencyInjection][Routing] Handle declaring services and routes using PHP arrays that follow the same shape as corresponding yaml files
  [Mailer][MailJet] Fix forbidden headers case-sensitive comparison
  [DependencyInjection][Config][Routing] Deprecate using `$this` or the internal scope of the loader from PHP config files
  [Config] Add array-shapes to generated config builders
  [DependencyInjection] Handle returning arrays and config-builders from config files
  [WebProfilerBundle] Simplify toolbar CSS
  do not use deprecated PHPUnit features
  replace PHPUnit annotation with attribute
  [Serializer] xml empty array encoding
  ...

Author: nicolas-grekas

README.md

@@ -6,7 +6,7 @@ Provides powerful methods to read/write data structures from/into JSON streams.
 Resources
 ---------
 
- * [Documentation](https://symfony.com/doc/current/components/ser-des.html)
+ * [Documentation](https://symfony.com/doc/current/serializer/streaming_json.html)
  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
  * [Report issues](https://github.com/symfony/symfony/issues) and
    [send Pull Requests](https://github.com/symfony/symfony/pulls)