build(deps): bump golang.org/x/sync from 0.17.0 to 0.18.0 (chainguard-dev#1926)

Bumps [golang.org/x/sync](https://github.com/golang/sync) from 0.17.0 to
0.18.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/golang/sync/commit/1966f539bbd7664efd5bb7462ae94d9db67f4502"><code>1966f53</code></a>
errgroup: fix some typos in comment</li>
<li>See full diff in <a
href="https://github.com/golang/sync/compare/v0.17.0...v0.18.0">compare
view</a></li>
</ul>
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go.mod

@@ -26,7 +26,7 @@ require (
 	go.opentelemetry.io/otel/trace v1.38.0
 	go.step.sm/crypto v0.73.0
 	golang.org/x/oauth2 v0.32.0
-	golang.org/x/sync v0.17.0
+	golang.org/x/sync v0.18.0
 	golang.org/x/sys v0.37.0
 	golang.org/x/time v0.14.0
 	google.golang.org/api v0.254.0

go.sum

@@ -328,8 +328,8 @@ golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
-golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
+golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=