fix(docker): modify db configuration for new tests

A user that can create databases is now required for tests,
we use the 'root' user in Docker.

Added docker services:
---------------------
- mariadb_test - host localhost:13307

Signed-off-by: Kevin Morris <kevr@0cost.org>

docker/scripts/run-php.sh

@@ -1,7 +1,4 @@
 #!/bin/bash
 set -eou pipefail
 
-# Initialize the new database; ignore errors.
-python -m aurweb.initdb 2>/dev/null || /bin/true
-
 exec php-fpm --fpm-config /etc/php/php-fpm.conf --nodaemonize