Allow Symfony 6

What's Changed

• Add support for Symfony v6 by @trearcul in #26

Full Changelog: 0.3.0...0.4.0

0.3.0

What's Changed

• Update phpstan/phpstan-phpunit requirement from 0.12.21 to 0.12.22 by @dependabot in #18
• Update phpstan/phpstan-strict-rules requirement from 0.12.10 to 0.12.11 by @dependabot in #19
• Update infection/infection requirement from ^0.24.0 to ^0.25.3 by @dependabot in #21
• Update infection/infection requirement from ^0.25.3 to ^0.26.0 by @dependabot in #22
• Update cdn77/coding-standard requirement from ^5.0 to ^6.0 by @dependabot in #23
• Drop support for PHP 7.4 by @trearcul in #24
• Drop support for Symfony v4 by @trearcul in #25

Full Changelog: 0.2.0...0.3.0

Bump PHP (7.4.+8.0)

Require PHP 7.4+ and allow 8.0

v0.1.3

• Require symfony/http-kernel: ^5.1.5 -> see CVE-2020-15094 High severity
• Bump CS
• Use Github Actions

v0.1.2

Drop Consistence (unmaintained)

v0.1.1

Small fix for Symfony 5

v0.1.0

Merge pull request #1 from cdn77/drop-support-for-old-symfony

Drop support for old Symfony