test(e2e): Add test for controller-led worker registration (#3882)

* test(e2e): Add test for controller led worker registration

* chore(e2e): Rename log files to ensure uniqueness

This updates the log files to be based on the scenario name instead of just the test package in case some scenarios run the same test package

enos/modules/docker_boundary/get_auth_token.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env sh
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+set -eu -o pipefail
+
+boundary authenticate password \
+  -login-name $LOGIN_NAME \
+  -password env://BPASS \
+  -format json