[IND-4227] [COMPLIANCE] Update Copyright Headers (Batch 2 of 2) (#2054)

* [COMPLIANCE] Update Copyright and License Headers (Batch 2 of 2)

* Add changelog

---------

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

Author: 3 people

.changes/unreleased/INTERNAL-20260119-174144.yaml

@@ -0,0 +1,6 @@
+kind: INTERNAL
+body: Update Copywright Header
+time: 2026-01-19T17:41:44.68241+05:30
+custom:
+    Issue: "2054"
+    Repository: terraform-ls

internal/langserver/handlers/hover_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/initialize.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/initialize_benchmarks_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/initialize_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/initialized.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/references.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/references_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/semantic_tokens.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers

internal/langserver/handlers/semantic_tokens_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2020, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package handlers