Backwards compatibility break in `RouterAssertionsTrait::seeCurrentRouteIs()`

https://github.com/Codeception/module-symfony/pull/227 broke backwards compatibility with tests written for prior versions of the module.

The following test now fails:

```php
$I->seeCurrentRouteIs('some_route', [
'id' => 1,
]);
```

With:

```
- Expected | + Actual
@@ @@
Array &0 [
'_route' => 'some_route',
- 'id' => 1,
+ 'id' => '1',
]
```

This usage is even how the method is documented:

https://github.com/Codeception/module-symfony/blob/01cfa3e12917e396cf99cee1fb63a553865cad16/src/Codeception/Module/Symfony/RouterAssertionsTrait.php#L87

Start in src/Codeception/Module/Symfony/RouterAssertionsTrait.php at seeCurrentRouteIs(), and compare the behavior introduced by pull request #227. Reproduce the documented call with an integer id, then add or update a regression test if the existing test suite has coverage for this assertion. Done means prior calls continue comparing integer route parameters without converting them to strings.

Written by the indexing model from the issue text.