Update dependencies

Among others, this updates minio-go, so that the new "eu-west-3" zone
for AWS is supported.

vendor/cloud.google.com/go/internal/testutil/server_test.go

@@ -18,6 +18,7 @@ import (
 	"testing"
 
 	grpc "google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
 )
 
 func TestNewServer(t *testing.T) {
@@ -33,3 +34,46 @@ func TestNewServer(t *testing.T) {
 	conn.Close()
 	srv.Close()
 }
+
+func TestPageBounds(t *testing.T) {
+	const length = 10
+	for _, test := range []struct {
+		size     int
+		tok      string
+		wantFrom int
+		wantTo   int
+		wantTok  string
+	}{
+		{5, "",
+			0, 5, "5"},
+		{11, "",
+			0, 10, ""},
+		{5, "2",
+			2, 7, "7"},
+		{5, "8",
+			8, 10, ""},
+		{11, "8",
+			8, 10, ""},
+		{1, "11",
+			10, 10, ""},
+	} {
+		gotFrom, gotTo, gotTok, err := PageBounds(test.size, test.tok, length)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if got, want := gotFrom, test.wantFrom; got != want {
+			t.Errorf("%+v: from: got %d, want %d", test, got, want)
+		}
+		if got, want := gotTo, test.wantTo; got != want {
+			t.Errorf("%+v: to: got %d, want %d", test, got, want)
+		}
+		if got, want := gotTok, test.wantTok; got != want {
+			t.Errorf("%+v: got %q, want %q", test, got, want)
+		}
+	}
+
+	_, _, _, err := PageBounds(4, "xyz", 5)
+	if grpc.Code(err) != codes.InvalidArgument {
+		t.Errorf("want invalid argument, got <%v>", err)
+	}
+}