go.mod: update golang.org/x dependencies

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

Change-Id: I8348c05748f22f6b6701a197b29e8b6dba837d0d
Reviewed-on: https://go-review.googlesource.com/c/term/+/633476
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>

README.md

@@ -4,16 +4,13 @@
 
 This repository provides Go terminal and console support packages.
 
-## Download/Install
-
-The easiest way to install is to run `go get -u golang.org/x/term`. You can
-also manually git clone the repository to `$GOPATH/src/golang.org/x/term`.
-
 ## Report Issues / Send Patches
 
 This repository uses Gerrit for code changes. To learn how to submit changes to
-this repository, see https://golang.org/doc/contribute.html.
+this repository, see https://go.dev/doc/contribute.
+
+The git repository is https://go.googlesource.com/term.
 
 The main issue tracker for the term repository is located at
-https://github.com/golang/go/issues. Prefix your issue with "x/term:" in the
+https://go.dev/issues. Prefix your issue with "x/term:" in the
 subject line, so it is easy to find.

go.mod

@@ -2,4 +2,4 @@ module golang.org/x/term
 
 go 1.18
 
-require golang.org/x/sys v0.26.0
+require golang.org/x/sys v0.28.0

go.sum

@@ -1,2 +1,2 @@
-golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
-golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
+golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=