update go.mod to v2

go.mod

@@ -1,4 +1,4 @@
-module github.com/goproxyio/goproxy
+module github.com/goproxyio/goproxy/v2
 
 go 1.12
 

main.go

@@ -33,7 +33,7 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/goproxyio/goproxy/proxy"
+	"github.com/goproxyio/goproxy/v2/proxy"
 
 	"golang.org/x/mod/module"
 )

proxy/router.go

@@ -15,7 +15,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/goproxyio/goproxy/renameio"
+	"github.com/goproxyio/goproxy/v2/renameio"
 )
 
 const ListExpire = 5 * time.Minute

renameio/renameio.go

@@ -13,7 +13,7 @@ import (
 	"path/filepath"
 	"strconv"
 
-	"github.com/goproxyio/goproxy/robustio"
+	"github.com/goproxyio/goproxy/v2/robustio"
 )
 
 const patternSuffix = ".tmp"

renameio/renameio_test.go

@@ -20,7 +20,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/goproxyio/goproxy/robustio"
+	"github.com/goproxyio/goproxy/v2/robustio"
 )
 
 func TestConcurrentReadsAndWrites(t *testing.T) {