Bump psr/http-message version

[erikn69]

Closes #112

[derrabus]

We cannot test with v2 yet because nyholm/psr7 is not ready. That shouldn't take too long, let's wait.

[stayallive]

https://github.com/Nyholm/psr7/releases/tag/1.7.0 just released, should unblock this 🥳

[derrabus]

Good news: We are indeed unblocked. The bad news: the tests blew up. 😏

[stof]

Well, fixture classes need to be compatible with the new version of packages.

[stof]

Note that this will probably make it hard to keep compat with PHP 7.1 in the testsuite (as variance in PHP requires PHP 7.2 and variance is require to write code supporting multiple versions of the interface).
I suggest that we bump the min version to 7.2.5 (like Symfony 5.4 LTS) instead of trying to maintain multiple fixture classes to keep the existing ones for 7.1.

[derrabus]

Agreed. Let's drop Symfony 4 along with PHP 7.1: #114

[derrabus]

Do we need those fixtures anyway? I mean, we could just use the classes from nyholm/psr7. 🤔

[nicolas-grekas]

@erikn69 in case this helps, you can run tests locally using ./vendor/bin/simple-phpunit

[erikn69]

I did try ./vendor/bin/simple-phpunit, but it brings me Phpunit 9, and seems like this need Phpunit 8

[derrabus]

The tests run perfectly fine on PHPUnit 9: https://github.com/symfony/psr-http-message-bridge/actions/runs/4754853299/jobs/8448204579#step:6:11

[erikn69]

The tests run perfectly fine on PHPUnit 9

yes, it was a problem in my environment, fixed

[derrabus]

Thank you @erikn69.