Fix request parameter method call in `GuideController`

The method $request->get() was removed in Symfony >= 8. Internal the method used either $this->attributes->get() or $this->query->get() or $this->request->get(). In this case we need to call $request->query->get().

Symonfy 8.x compat 🚀

What's Changed

• Prepare transition from XML- to PHP-based routing configuration by @mpdude in #43
• Bump requirements to currently supported Symfony versions, allow Symfony 8.x by @mpdude in #44
• Use attributes for PHPUnit configuration by @mpdude in #45

Full Changelog: 2.6.2...2.7.0

Switch from XML to PHP-based service configuration

What's Changed

• Switch from XML-based to PHP-based service configuration by @mpdude in #42

Full Changelog: 2.6.1...2.6.2

Validate shortcode controllername service configurations (Case 173693)

2.6.0

Validate shortcode controllername service configurations (Case 173693…

Allow never versions of `psr/log` to be used (#39)

What's Changed

• Allow never versions of psr/log to be used by @mpdude in #39

Full Changelog: 2.5.0...2.5.1

Update requirements, fix missing return type hints

What's Changed

• Aktualisiere PHP-CS-Fixer auf v3.62.0 by @mpdude in #36
• Nutze Docker-Image von friendsofphp/php-cs-fixer by @mpdude in #37
• Update test matrix and dependencies to use supported Symfony versions only by @mpdude in #38

Full Changelog: 2.4.0...2.5.0

Compatibility with Symfony 7

2.4.0

Allow Symfony 7 packages (Case 170245) (#33)

Add a form so shortcodes can be tried out in the "guide" (#31)

This adds a textarea to the example pages shown in the "shortcode
guide", so that users can modify the example code given and preview the
results.

Allow symfony 6 packages (#29)

2.2.0

Allow symfony 6 packages (#29)

Fixes a Symfony deprecation notice (#25)

Add a return type hint (#25)

... to avoid a Symfony DebugClassLoader deprecation notice.