use grpc.NewClient() instead of deprecated grpc.Dial()

golangci-lint complains about the usage of the deprecated grpc.Dial()
function:

    SA1019: grpc.Dial is deprecated: use NewClient instead.

The grpc.NewClient() function seems to be completely compatible with
grpc.Dial(), parameters and return values are all the same.

Signed-off-by: Niels de Vos <ndevos@ibm.com>

cmd/csi-addons/main.go

@@ -150,7 +150,7 @@ type grpcClient struct {
 
 // Connect to the endpoint, or panic in case it fails.
 func (g *grpcClient) Connect(endpoint string) {
-	conn, err := grpc.Dial(
+	conn, err := grpc.NewClient(
 		endpoint,
 		grpc.WithTransportCredentials(insecure.NewCredentials()))
 	if err != nil {

internal/connection/connection.go

@@ -44,7 +44,7 @@ func NewConnection(ctx context.Context, endpoint, nodeID, driverName, namespace,
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 		grpc.WithIdleTimeout(time.Duration(0)),
 	}
-	cc, err := grpc.Dial(endpoint, opts...)
+	cc, err := grpc.NewClient(endpoint, opts...)
 	if err != nil {
 		return nil, err
 	}