feat: make signature generation more flexible by allowing relative URLs

[MichaelBrauner]

Here is the PR regarding this issue: #136

In the current implementation, the UriSigner always generates an absolute URL when signing. However, this might not be the desired behavior in some cases.

This PR adds a configuration option (use_relative_path) to allow the use of relative URLs when generating signatures. By default, the option is set to false, which maintains the existing behavior of generating absolute URLs.

[eidenschink]

This configuration option would be great. I have a use case where I want to target to a completely different host running on another framework; the hosts endpoint then proxies the request (or rather re-creates it) to the Symfony Controller.
If only the relative path is signed I can simply make the necessary hostname change in the TWIG template.

[shakaran]

@MichaelBrauner could you rebase for resolve the conflicts? Thanks

[MichaelBrauner]

Hi, this PR is now ready for review.

However, I wasn't able to run the test suite locally – vendor/bin/simple-phpunit fails with:

Trait "Symfony\Bridge\PhpUnit\Legacy\PolyfillAssertTrait" not found in Assert.php

I tried with PHP 8.1 and 8.2, removed and reinstalled the vendor folder and the PHPUnit Bridge multiple times, but no success.
Maybe you could verify if the test suite runs on your end?

Thanks!

[MichaelBrauner]

Can you rerun the checks?
It should pass: https://github.com/MichaelBrauner/verify-email-bundle/actions/runs/15507669530

[bocharsky-bw]

Sorry for the delay.

I reran the CI, but we still have errors here