Some float value would map to int in enum values e.g `1.0` -> `1`

See [the example](https://cadlplayground.z22.web.core.windows.net/?c=ZW51bSBJbnRlZ2VyRcQMew0KICBPbmU6IDEsxAtUd286IDLGC2hyZWU6IDMsDQp9DQoNCsU8RmxvYXTQOi4wyzzIDcc%2BxQ%2FFQG1vZGVsIFJlc3VsdMY%2BaW50OuwAjsU5ZsRiOsppxz5Ac2VydmljZSh7fSkNCm5hbWVzcGFjZSBUZXPHTm9wIGdldCgpOsdkOw0KfQ%3D%3D&e=%40typespec%2Fopenapi3&options=%7B%7D) for `FloatEnum` which has values `1.0, 2.0, 3.0` would be mapped to `1, 2, 3`. I think this is incorrect.

```
enum FloatEnum {
One: 1.0,
Two: 2.0,
Three: 3.0,
}
```
swagger spec:

```
FloatEnum:
type: number
enum:
- 1
- 2
- 3
```

Another thing is I notice that the [docs](https://microsoft.github.io/typespec/language-basics/enums#values) guides me following cases but it doesn't work, could you update the docs?

```
enum Hour {
Zero = 0,
Quarter = 0.25,
Half = 0.5,
ThreeQuarter = 0.75,
}
```