fix: use standard context package

Signed-off-by: Marcus Brandenburger <bur@zurich.ibm.com>

Author: mbrandenburger

go.mod

@@ -55,7 +55,6 @@ require (
 	go.uber.org/goleak v1.3.0
 	go.uber.org/zap v1.27.0
 	golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c
-	golang.org/x/net v0.42.0
 	golang.org/x/sync v0.16.0
 	golang.org/x/text v0.27.0
 	google.golang.org/grpc v1.76.0
@@ -293,6 +292,7 @@ require (
 	golang.org/x/arch v0.11.0 // indirect
 	golang.org/x/crypto v0.40.0 // indirect
 	golang.org/x/mod v0.25.0 // indirect
+	golang.org/x/net v0.42.0 // indirect
 	golang.org/x/oauth2 v0.30.0 // indirect
 	golang.org/x/sys v0.36.0 // indirect
 	golang.org/x/time v0.8.0 // indirect

platform/fabricx/core/transaction/transaction.go

@@ -8,6 +8,7 @@ package transaction
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -24,7 +25,6 @@ import (
 	"github.com/hyperledger/fabric-x-common/protoutil"
 	"go.opentelemetry.io/otel/trace"
 	"go.uber.org/zap/zapcore"
-	"golang.org/x/net/context"
 )
 
 var logger = logging.MustGetLogger()