doc(sdk): update go sdk examples with new change in gRPC

Signed-off-by: Roman Dmytrenko <[email protected]>

sdk/go/README.md

@@ -43,14 +43,18 @@ import (
  sdk "go.flipt.io/flipt/sdk/go"
  sdkgrpc "go.flipt.io/flipt/sdk/go/grpc"
  grpc "google.golang.org/grpc"
+ "google.golang.org/grpc/credentials/insecure"
 )
 
 func main() {
  token := sdk.StaticTokenAuthenticationProvider("a-flipt-client-token")
 
- conn := grpc.Dial("localhost:9090")
- transport := sdkgrpc.NewTransport(conn)
+ conn, err := grpc.NewClient("localhost:9000", grpc.WithTransportCredentials(insecure.NewCredentials()))
+ if err != nil {
+  panic(err)
+ }
+ defer conn.Close()
 
- client := sdk.New(transport, sdk.WithAuthenticationProvider(token))
+ client := sdk.New(sdkgrpc.NewTransport(conn), sdk.WithAuthenticationProvider(token))
 }
-```
+```

sdk/go/doc.go

@@ -15,7 +15,7 @@ The main entrypoint within this package is [New], which takes an instance of [Tr
 The following is an example of creating and instance of the SDK using the gRPC transport.
 
 	func main() {
-		conn := grpc.Dial("localhost:9090")
+		conn, _ := grpc.NewClient("localhost:9000")
 		transport := grpc.NewTransport(conn)
 		client := sdk.New(transport)
 	}

sdk/go/grpc/example_test.go

@@ -8,7 +8,7 @@ import (
 )
 
 func ExampleNewTransport() {
-	cc, _ := grpc.Dial("localhost:9090")
+	cc, _ := grpc.NewClient("localhost:9000")
 
 	transport := NewTransport(cc)