Enable additional scanners

See merge request !26

Add SAST and Dependency scanning

See merge request !25

[skip ci]

Add license

See merge request !24

Test linting for configurations

See merge request !23

Create variant for testing Redis-related plugins

See merge request !22

Remove broken Xdebug enable

See merge request !21

Correct how Xdebug is loaded

See merge request !20

Fix Xdebug enable

See merge request !19

Enable Xdebug

See merge request !18

Add PHP 8.1

See merge request !17

Remove GitLab's SAST pipeline

See merge request !16

`before_script` include conflicts with it.