…ator` using `_query` (BenMorel)

This PR was merged into the 7.4 branch.

Discussion
----------

[Routing] Allow query-specific parameters in `UrlGenerator` using `_query`

| Q             | A
| ------------- | ---
| Branch?       | 7.4
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Issues        | -
| License       | MIT

This PR adds support for a special `_query` key in `$parameters` of `UrlGenerator::generate()`, that is used exclusively to generate query parameters. This is useful when query parameters may conflict with route parameters of the same name.

Concrete use case:

My application has a route that looks like:

    https://{siteCode}.{domain}/admin/stats

And I want to generate this URL:

    https://fr.example.com/admin/stats?siteCode=us

With this PR, I can now call:

```php
$urlGenerator->generate('admin_stats', [
    'siteCode' => 'fr',
    'domain' => 'example.com',
    '_query' => [
        'siteCode' => 'us',
    ]
]);
```

Commits
-------

e3513bdf48c Allow query-specific parameters in URL generator using `_query`

* 7.3:
  [DoctrineBridge] Prevent idle connection listener from running on subrequests
  [Routing] Add test to validate that default value is allowed to not match requirement
  fix handling required options
  Fix @var phpdoc
  [Lock] [MongoDB] Enforce readPreference=primary and writeConcern=majority
  [FrameworkBundle] fix phpdoc in `MicroKernelTrait`
  Fixed validator translations for Albanian

https://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc

…(keradus)

This PR was merged into the 7.4 branch.

Discussion
----------

 chore: PHP CS Fixer - heredoc indentation as of PHP 7.3

| Q             | A
| ------------- | ---
| Branch?       | 7.4
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Issues        | Fix CS <!-- prefix each issue number with "Fix #", no need to create an issue if none exists, explain below instead -->
| License       | MIT

inspired by symfony/symfony@06e22b0#r2265021821

[Possible since PHP 7.3](https://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc)

with love by [PHP Coding Standards Fixer](https://cs.symfony.com/)

Commits
-------

4a25a6a5785 chore: heredoc indentation as of PHP 7.3