go.mod: update golang.org/x dependencies

Update golang.org/x dependencies to their latest tagged versions.

Change-Id: Iccb8d7665457d272f5065768dadc5ca5ddd606ce
Reviewed-on: https://go-review.googlesource.com/c/debug/+/532955
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Gopher Robot <gobot@golang.org>

go.mod

diff --git a/go.mod b/go.mod
index 9602866..2d5817e 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@
 	github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
 	github.com/spf13/cobra v0.0.3
 	github.com/spf13/pflag v1.0.3
-	golang.org/x/sys v0.12.0
+	golang.org/x/sys v0.13.0
 )
 
 require (

go.sum

diff --git a/go.sum b/go.sum
index 7964648..09152f3 100644
--- a/go.sum
+++ b/go.sum
@@ -10,5 +10,5 @@
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
 github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
-golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
-golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=