[COMPLIANCE] Update Copyright Headers (#6282)

* [COMPLIANCE] Update Copyright and License Headers

* chore: make gen to generate files with copyright headers

* chore: update missed copyright headers

---------

Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
Co-authored-by: Justin Nguyen <justin.nguyen@hashicorp.com>

enos/enos-scenario-e2e-docker-worker-registration-controller-led.hcl

@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2020, 2025
 # SPDX-License-Identifier: BUSL-1.1
 
 # For this scenario to work, add the following line to /etc/hosts