Field ignored if it has the same method name as another field

Hi,

the current versions can't seem to handle something like this:

```
[Name("getItem")
public object getItem(string id)
{
...
}

[Name("getItemByIdAndPath")
public object getItem(string id, string path)
{
...
}
```

In this case, we get this error:
`Cannot query field "getItemByIdAndPath" on type "Query"`

It seems it just gets ignored while parsing and doesn't exist.

Luckily, we only had one occurrence of this, and the fix is easy. But still, you should probably be made aware of this.

GraphQL: 8.2.1
GraphQL.Server.Transports.AspNetCore: 8.2.0
GraphQL.Convetions: 8.0.0