Mention go vet possible addition

Such as

```yaml
linters-settings:
  govet:
    enable:
      - unusedwrite
```

https://github.com/golangci/golangci-lint/discussions/5108

https://golangci-lint.run/usage/linters/#govet

https://pkg.go.dev/cmd/vet

Some others than unusedwrite might be interesting

Maybe try `enable-all`, and see how much things are reported