[chore] update otel -> v1.20.0 (#2358)

vendor/go.opentelemetry.io/otel/internal/global/trace.go

@@ -39,6 +39,7 @@ import (
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/trace"
+	"go.opentelemetry.io/otel/trace/embedded"
 )
 
 // tracerProvider is a placeholder for a configured SDK TracerProvider.
@@ -46,6 +47,8 @@ import (
 // All TracerProvider functionality is forwarded to a delegate once
 // configured.
 type tracerProvider struct {
+	embedded.TracerProvider
+
 	mtx      sync.Mutex
 	tracers  map[il]*tracer
 	delegate trace.TracerProvider
@@ -119,6 +122,8 @@ type il struct {
 // All Tracer functionality is forwarded to a delegate once configured.
 // Otherwise, all functionality is forwarded to a NoopTracer.
 type tracer struct {
+	embedded.Tracer
+
 	name     string
 	opts     []trace.TracerOption
 	provider *tracerProvider
@@ -156,6 +161,8 @@ func (t *tracer) Start(ctx context.Context, name string, opts ...trace.SpanStart
 // SpanContext. It performs no operations other than to return the wrapped
 // SpanContext.
 type nonRecordingSpan struct {
+	embedded.Span
+
 	sc     trace.SpanContext
 	tracer *tracer
 }