Add psr-testlogger to our dev dependencies since AU moved theirs

composer.json

@@ -12,7 +12,8 @@
         "ext-simplexml": "*"
     },
     "require-dev": {
-        "drupal/automatic_updates": "3.0.x-dev"
+        "drupal/automatic_updates": "3.0.x-dev",
+        "colinodell/psr-testlogger": "^1.2"
     },
     "config": {
         "optimize-autoloader": true,