docs: acknowledge Rust's existence

[lidavidm]

No description provided.

[amoeba]

For consistency, should we add a Rust section in https://arrow.apache.org/adbc/current/driver/installation.html with basically this?

Rust
====

Add the appropriate driver package as a dependency:

..  code-block:: shell
   cargo add adbc_datafusion

[lidavidm]

Good point, I added a quick section in the installation page

[daipom]

Thanks!

I thought it might help to mention that the following use are needed.

use adbc_core::{Connection, Database, Driver, Statement};

[lidavidm]

Fixed!