Bump golang.org/x/sys from 0.27.0 to 0.28.0

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.27.0 to 0.28.0.
- [Commits](golang/sys@v0.27.0...v0.28.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -7,7 +7,7 @@ require (
 	fortio.org/dflag v1.7.3
 	fortio.org/log v1.17.1
 	fortio.org/version v1.0.4
-	golang.org/x/sys v0.27.0
+	golang.org/x/sys v0.28.0
 )
 
 require (

go.sum

@@ -19,5 +19,5 @@ golang.org/x/crypto/x509roots/fallback v0.0.0-20240806160748-b2d3a6a4b4d3 h1:oWb
 golang.org/x/crypto/x509roots/fallback v0.0.0-20240806160748-b2d3a6a4b4d3/go.mod h1:kNa9WdvYnzFwC79zRpLRMJbdEFlhyM5RPFBBZp/wWH8=
 golang.org/x/exp v0.0.0-20240808152545-0cdaa3abc0fa h1:ELnwvuAXPNtPk1TJRuGkI9fDTwym6AYBu0qzT8AcHdI=
 golang.org/x/exp v0.0.0-20240808152545-0cdaa3abc0fa/go.mod h1:akd2r19cwCdwSwWeIdzYQGa/EZZyqcOdwWiwj5L5eKQ=
-golang.org/x/sys v0.27.0 h1:wBqf8DvsY9Y/2P8gAfPDEYNuS30J4lPHJxXSb/nJZ+s=
-golang.org/x/sys v0.27.0/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=