Updated Drupal to 8.6. This goes with the following updates because it's possible...
[yaffs-website] / vendor / league / container / src /
drwxr-xr-x   ..
drwxr-xr-x - Argument
-rw-r--r-- 8654 Container.php
-rw-r--r-- 384 ContainerAwareInterface.php
-rw-r--r-- 609 ContainerAwareTrait.php
-rw-r--r-- 1628 ContainerInterface.php
drwxr-xr-x - Definition
drwxr-xr-x - Exception
-rw-r--r-- 482 ImmutableContainerAwareInterface.php
-rw-r--r-- 708 ImmutableContainerAwareTrait.php
-rw-r--r-- 185 ImmutableContainerInterface.php
drwxr-xr-x - Inflector
-rw-r--r-- 2328 ReflectionContainer.php
drwxr-xr-x - ServiceProvider