move to v4

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

tracer/memory/memory.go

@@ -4,8 +4,8 @@ import (
 	"context"
 	"time"
 
-	"go.unistack.org/micro/v3/tracer"
-	"go.unistack.org/micro/v3/util/id"
+	"go.unistack.org/micro/v4/tracer"
+	"go.unistack.org/micro/v4/util/id"
 )
 
 var _ tracer.Tracer = (*Tracer)(nil)

tracer/memory/memory_test.go

@@ -7,9 +7,9 @@ import (
 	"strings"
 	"testing"
 
-	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/logger/slog"
-	"go.unistack.org/micro/v3/tracer"
+	"go.unistack.org/micro/v4/logger"
+	"go.unistack.org/micro/v4/logger/slog"
+	"go.unistack.org/micro/v4/tracer"
 )
 
 func TestLoggerWithTracer(t *testing.T) {

tracer/noop.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"time"
 
-	"go.unistack.org/micro/v3/util/id"
+	"go.unistack.org/micro/v4/util/id"
 )
 
 var _ Tracer = (*noopTracer)(nil)

tracer/options.go

@@ -3,7 +3,7 @@ package tracer
 import (
 	"context"
 
-	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v4/logger"
 )
 
 type SpanStatus int

tracer/tracer.go

@@ -4,7 +4,7 @@ package tracer
 import (
 	"context"
 
-	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v4/logger"
 )
 
 var (