Add phpstan to gitlab CI pipeline

6 jobs for master in 4 minutes (queued for 29 seconds)
Status Job ID Name Coverage
  Build
passed #168681767
composer

00:01:15

passed #168681768
npm

00:00:59

 
  Lint
passed #168681769
php-standards

00:00:51

 
  Test
passed #168681770
phpunit

00:01:03

6.19%
 
  Analyze
passed #168681771
phpstan-level0

00:00:45

passed #168681773
phpstan-level1

00:00:49