Rename PutMultipartOpts to PutMultipartOptions

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**

As pointed out on https://github.com/apache/arrow-rs-object-store/pull/324/files#r2052563762 by @stayrascal, PutMultipartOpts is inconsistent with the naming of other such options structs

**Describe the solution you'd like**

We should rename `PutMultipartOpts` to `PutMultipartOptions`.

To avoid this being a breaking change we should add

```
#[doc(hidden)]
#[deprecated(note = "Use PutMultipartOptions")]
pub type PutMultipartOpts = PutMultipartOptions;
```

**Describe alternatives you've considered**

**Additional context**