vendor: update buildkit

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/moby/buildkit/util/bklog/log.go

@@ -0,0 +1,54 @@
+package bklog
+
+import (
+	"context"
+
+	"github.com/sirupsen/logrus"
+	"go.opentelemetry.io/otel/trace"
+)
+
+var (
+	G = GetLogger
+	L = logrus.NewEntry(logrus.StandardLogger())
+)
+
+var (
+	logWithTraceID = false
+)
+
+func EnableLogWithTraceID(b bool) {
+	logWithTraceID = b
+}
+
+type (
+	loggerKey struct{}
+)
+
+// WithLogger returns a new context with the provided logger. Use in
+// combination with logger.WithField(s) for great effect.
+func WithLogger(ctx context.Context, logger *logrus.Entry) context.Context {
+	return context.WithValue(ctx, loggerKey{}, logger)
+}
+
+// GetLogger retrieves the current logger from the context. If no logger is
+// available, the default logger is returned.
+func GetLogger(ctx context.Context) (l *logrus.Entry) {
+	logger := ctx.Value(loggerKey{})
+
+	if logger != nil {
+		l = logger.(*logrus.Entry)
+	} else {
+		l = L
+	}
+
+	if logWithTraceID {
+		if spanContext := trace.SpanFromContext(ctx).SpanContext(); spanContext.IsValid() {
+			return l.WithFields(logrus.Fields{
+				"traceID": spanContext.TraceID(),
+				"spanID":  spanContext.SpanID(),
+			})
+		}
+	}
+
+	return l
+}