Merge release 3.6.0 into 4.0.x

[github-actions[bot]]

Release Notes for 3.6.0

Feature release (minor)

3.6.0

• Total issues resolved: 0
• Total pull requests resolved: 7
• Total contributors: 3

CI

• 429: Bump workflow actions thanks to @greg0ire
• 427: Configure docs path depending on the branch thanks to @greg0ire

Documentation

• 428: Remove changelog thanks to @greg0ire

• 419: Update composer dump-autoload command syntax thanks to @Dumkaaa

• 426: Switch to a modern directory structure thanks to @greg0ire

Static Analysis

• 424: Dismiss new PHPStan issues thanks to @greg0ire

Improvement

• 421: Automatically extract fixture dependencies thanks to @cs278