added missing headers

Author: michalpristas

internal/pkg/agent/application/fleet_config_patcher.go

@@ -1,3 +1,7 @@
+// Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+// or more contributor license agreements. Licensed under the Elastic License 2.0;
+// you may not use this file except in compliance with the Elastic License 2.0.
+
 package application
 
 import (

internal/pkg/agent/application/fleet_config_patcher_test.go

@@ -1,16 +1,21 @@
+// Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+// or more contributor license agreements. Licensed under the Elastic License 2.0;
+// you may not use this file except in compliance with the Elastic License 2.0.
+
 package application
 
 import (
 	"os"
 	"path/filepath"
 	"testing"
 
-	"github.com/elastic/elastic-agent/internal/pkg/agent/configuration"
-	"github.com/elastic/elastic-agent/internal/pkg/config"
-	"github.com/elastic/elastic-agent/pkg/core/logger/loggertest"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
+
+	"github.com/elastic/elastic-agent/internal/pkg/agent/configuration"
+	"github.com/elastic/elastic-agent/internal/pkg/config"
+	"github.com/elastic/elastic-agent/pkg/core/logger/loggertest"
 )
 
 func Test_FleetPatcher(t *testing.T) {