Switch to the correct phpstan docker image

bin/phpstan

 #!/bin/bash
 
 export $(cat .env | xargs)
-docker run --rm -v $(php /usr/local/bin/volume.php /app) phpstan/phpstan "$@"
+docker run --rm -v $(php /usr/local/bin/volume.php /app) ghcr.io/phpstan/phpstan "$@"
 EC=$?
 
 exit $EC