function 'CheckAccountCapability' canot Unmarshal request body

```Go
package main

import (
"context"
gerrit "github.com/andygrunwald/go-gerrit"
"log"
)

func main() {
ctx := context.Background()
instance := "http://127.0.0.1:8080/"
client, _ := gerrit.NewClient(ctx, instance, nil)
client.Authentication.SetBasicAuth("admin", "xxx")

cap, _, err := client.Accounts.CheckAccountCapability(ctx, "admin", "createGroup")
log.Printf("err: %v", err)
log.Printf("capability: %s\n", cap)
}
```

2024/06/01 13:10:41 err: invalid character 'o' looking for beginning of value
2024/06/01 13:10:41 capability: