[COMPLIANCE] Add Copyright and License Headers (#27881)

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

internal/customermanagedkeys/key_vault_or_managed_hsm_key.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package customermanagedkeys
 
 import (

internal/customermanagedkeys/key_vault_or_managed_hsm_key_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package customermanagedkeys_test
 
 import (

internal/services/azurestackhci/stack_hci_extension_resource.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package azurestackhci
 
 import (

internal/services/azurestackhci/stack_hci_extension_resource_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package azurestackhci_test
 
 import (

internal/services/azurestackhci/stack_hci_marketplace_gallery_image_resource.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package azurestackhci
 
 import (

internal/services/azurestackhci/stack_hci_marketplace_gallery_image_resource_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package azurestackhci_test
 
 import (

internal/services/codesigning/client/client.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package client
 
 import (

internal/services/network/virtual_network_peering_data_source.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package network
 
 import (

internal/services/network/virtual_network_peering_data_source_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package network_test
 
 import (