Start with PHP 8.2 support.

See merge request !7

Resolve "Laravel 9 support"

Closes #7

See merge request !6

- Allow Laravel 9 (temporary allow dev packages)
- Allow testbench 7
- Move the requirement for beechit/json-to-code-climate-subset-converter to a CI job because it result conflicts.
- Add CI jobs for Laravel 9
- Minor PHPCS fixes

Resolve "Support PHP 8.1"

Closes #6

See merge request !5

Start with infection for mutation testing

See merge request !4

Resolve "Add Changelog"

Closes #2

See merge request !3

Resolve "Add GitAttributes"

Closes #4

See merge request !2

Resolve "Add README"

Closes #1

See merge request !1