Bump golang.org/x/sys from 0.20.0 to 0.21.0 (jaegertracing#5538)

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.20.0 to
0.21.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/golang/sys/commit/673e0f94c16da4b6d7f550d6af66fde0c69503e4"><code>673e0f9</code></a>
unix: skip ethtool driver test for busy interface</li>
<li><a
href="https://github.com/golang/sys/commit/6943ab67c485d110829e8c77c3a46235a07d73b9"><code>6943ab6</code></a>
unix/linux: update glibc to 2.39</li>
<li><a
href="https://github.com/golang/sys/commit/92f3ad6e7f2c62ef8e7c26906fdb3b67419566ac"><code>92f3ad6</code></a>
unix: update to Linux kernel 6.9</li>
<li><a
href="https://github.com/golang/sys/commit/f34bb9fccc5017bce03e0a0446cc145e8424054b"><code>f34bb9f</code></a>
windows: add net user enum</li>
<li><a
href="https://github.com/golang/sys/commit/6dfb94eaa3bd0fcaa615f58e915f7214ce078beb"><code>6dfb94e</code></a>
unix: add types for SOCK_DIAG</li>
<li>See full diff in <a
href="https://github.com/golang/sys/compare/v0.20.0...v0.21.0">compare
view</a></li>
</ul>
</details>
<br />


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go.mod

@@ -75,7 +75,7 @@ require (
 	go.uber.org/goleak v1.3.0
 	go.uber.org/zap v1.27.0
 	golang.org/x/net v0.25.0
-	golang.org/x/sys v0.20.0
+	golang.org/x/sys v0.21.0
 	google.golang.org/grpc v1.64.0
 	google.golang.org/protobuf v1.34.1
 	gopkg.in/yaml.v2 v2.4.0

go.sum

@@ -666,8 +666,8 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
+golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=