util: address golangci-lint for kms

addressing golangci-lint issues for
the kms related code.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

internal/kms/aws_metadata_test.go

@@ -19,11 +19,11 @@ package kms
 import (
 	"testing"
 
-	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestAWSMetadataKMSRegistered(t *testing.T) {
 	t.Parallel()
 	_, ok := kmsManager.providers[kmsTypeAWSMetadata]
-	assert.True(t, ok)
+	require.True(t, ok)
 }