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

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

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

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

go.mod

@@ -7,4 +7,4 @@ require (
 	github.com/gorilla/websocket v1.5.3
 )
 
-require golang.org/x/net v0.27.0
+require golang.org/x/net v0.28.0