test: do not reach for Redis from the provisioning queue

Jobs that pin themselves to the provisioning connection bypass
QUEUE_CONNECTION, so two tests opened a Redis connection — fine on a machine
running the stack, a RedisException in CI. A test run must not depend on
infrastructure being up.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/TestCase.php

@@ -12,6 +12,11 @@ abstract class TestCase extends BaseTestCase
 
         // The suite must not depend on a built manifest.
         $this->withoutVite();
+
+        // Jobs that pin themselves to the provisioning connection bypass
+        // QUEUE_CONNECTION, so the suite would reach for Redis — infrastructure
+        // a test run must not depend on.
+        config(['queue.connections.provisioning' => ['driver' => 'sync']]);
     }
     //
 }