update script drop db

drop_db.sh

 #!/bin/bash
 set -e
 
-rm -rf /var/www/var
-vendor/bin/doctrine orm:schema-tool:drop --force
-vendor/bin/doctrine orm:schema-tool:create
+rm -rf ./var
+docker-compose exec slim vendor/bin/doctrine orm:schema-tool:drop --force
+docker-compose exec slim vendor/bin/doctrine orm:schema-tool:create