vendor: update buildkit to v0.18.0-rc1

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/go.opentelemetry.io/otel/sdk/trace/provider.go

@@ -1,16 +1,5 @@
 // Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 package trace // import "go.opentelemetry.io/otel/sdk/trace"
 
@@ -55,7 +44,7 @@ type tracerProviderConfig struct {
 	resource *resource.Resource
 }
 
-// MarshalLog is the marshaling function used by the logging system to represent this exporter.
+// MarshalLog is the marshaling function used by the logging system to represent this Provider.
 func (cfg tracerProviderConfig) MarshalLog() interface{} {
 	return struct {
 		SpanProcessors  []SpanProcessor
@@ -302,7 +291,7 @@ func (p *TracerProvider) Shutdown(ctx context.Context) error {
 				retErr = err
 			} else {
 				// Poor man's list of errors
-				retErr = fmt.Errorf("%v; %v", retErr, err)
+				retErr = fmt.Errorf("%w; %w", retErr, err)
 			}
 		}
 	}