…oundationFactory class (seriquynh)

This PR was merged into the 7.2 branch.

Discussion
----------

[PsrHttpMessageBridge] Remove a redundant check in HttpFoundationFactory class

| Q             | A
| ------------- | ---
| Branch?       | 7.2
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | N/A
| License       | MIT

`HttpFoundationFactory::createRequest` method receives an implementation of `ServerRequestInterface` and it's `getUri` method must always return a `UriInterface` implementation. So, this check below is redundant.

```php
<?php
$uri = $psrRequest->getUri(); // absolutely is \Psr\Http\Message\UriInterface

if ($uri instanceof UriInterface) { // redundant check
    // Do something
}
```

### My Concern
I've checked Symfony roadmap/releases [here](https://symfony.com/releases). And I decided to create a PR to branch 6.4 because:
- PsrHttpMessage is included in v6.4 (not in 5.4).
- v6.4 is still maintained (v6.0, v6.1, v6.2 and v6.3 are "End of life" versions).
- It is not a breaking/major change.

Did I choose branch correctly? If not, please give me more references/posts about how to choose a right branch for a PR.

Commits
-------

8e7e208149 Remove redundant check

updates the remaining tests that were not covered by #57665

* 7.1:
  [Serializer] Remove redundant @internal tags from traceable classes
  Fix conversion of partitioned cookies in the PSR-7 bridge
  [Validator] added Polish translation for units 116-119
  Revert stateless check
  [Console] Fix side-effects from running bash completions
  skip transient Redis integration tests on AppVeyor

* 7.1:
  Add PR template and auto-close PR on subtree split repositories