[COMPLIANCE] Update Copyright and License Headers (Batch 4 of 6) (#1250)

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

Author: 3 people

internal/testing/testschema/nested_attribute_object_with_validators.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_list_default.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_list_plan_modifiers.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_map_default.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_map_plan_modifiers.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_object_default.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_object_plan_modifiers.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_set_default.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_attribute_with_set_plan_modifiers.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema

internal/testing/testschema/nested_block_object.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2021, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testschema