Bump golang.org/x/net from 0.17.0 to 0.23.0 in /docsgen

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.17.0 to 0.23.0.
- [Commits](golang/net@v0.17.0...v0.23.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: docsgen/go.mod

@@ -87,11 +87,11 @@ require (
 	go.opentelemetry.io/otel v1.18.0 // indirect
 	go.opentelemetry.io/otel/metric v1.18.0 // indirect
 	go.opentelemetry.io/otel/trace v1.18.0 // indirect
-	golang.org/x/crypto v0.17.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
 	golang.org/x/mod v0.8.0 // indirect
-	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
 	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/tools v0.6.0 // indirect
 	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect