chore: Update OpenTelemetry semantic conventions to v1.40.0

Signed-off-by: Ridwan Sharif <ridwanmsharif@google.com>

Author: ridwanmsharif

tracing/tracing.go

@@ -30,7 +30,7 @@ import (
 	"go.opentelemetry.io/otel/propagation"
 	"go.opentelemetry.io/otel/sdk/resource"
 	tracesdk "go.opentelemetry.io/otel/sdk/trace"
-	semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.39.0"
 	"go.opentelemetry.io/otel/trace"
 	"go.opentelemetry.io/otel/trace/noop"
 	"google.golang.org/grpc/credentials"